2026-03-05 01:32:12 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-03-05 01:32:12 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-03-05 01:32:12 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-03-05 01:32:12 INFO ::casa 2026-03-05 01:32:12 INFO ::casa config values 2026-03-05 01:32:12 INFO ::casa agg = False 2026-03-05 01:32:12 INFO ::casa cachedir = '/home/casatest/.casa' 2026-03-05 01:32:12 INFO ::casa casaconfig_verbose = 1 2026-03-05 01:32:12 INFO ::casa colors = 'Neutral' 2026-03-05 01:32:12 INFO ::casa data_auto_update = False 2026-03-05 01:32:12 INFO ::casa data_update_interval = 1 2026-03-05 01:32:12 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-03-05 01:32:12 INFO ::casa iplog = False 2026-03-05 01:32:12 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/ipython-20260305-013207.log' 2026-03-05 01:32:12 INFO ::casa log2term = True 2026-03-05 01:32:12 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/casa-20260305-013207.log' 2026-03-05 01:32:12 INFO ::casa measures_auto_update = False 2026-03-05 01:32:12 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-03-05 01:32:12 INFO ::casa measures_site_interval = 2 2026-03-05 01:32:12 INFO ::casa measures_update_interval = 1 2026-03-05 01:32:12 INFO ::casa measurespath = '/opt/casa/data/master' 2026-03-05 01:32:12 INFO ::casa nogui = False 2026-03-05 01:32:12 INFO ::casa nologfile = False 2026-03-05 01:32:12 INFO ::casa nologger = True 2026-03-05 01:32:12 INFO ::casa pipeline = False 2026-03-05 01:32:12 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-03-05 01:32:12 INFO ::casa user_site = False 2026-03-05 01:32:12 INFO ::casa 2026-03-05 01:32:12 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-03-05 01:32:12 INFO ::casa measures version is unknown, this is probably a legacy version not installed by casaconfig 2026-03-05 01:32:12 INFO ::casa 2026-03-05 01:32:12 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-03-05 01:32:12 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/02/23/15:15, 2025/12/31/00:00:00 2026-03-05 01:32:12 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/02/23/15:15, 2025/12/31/00:00:00 2026-03-05 01:32:12 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/03/04/15:15, 2026/06/02/00:00:00 2026-03-05 01:32:12 INFO ::casa TAI_UTC (version date, last date in table (UTC)): 2026/02/23/15:15, 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 6.7.5.5 -- Common Astronomy Software Applications [6.7.5.5] 2026-03-05 01:32:12 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:32:12 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'} ) 2026-03-05 01:32:12 INFO MSTransformManager::parseMsSpecParams Input file name is /opt/casa/data/casatestdata/unittest/phaseshift/split11.ms 2026-03-05 01:32:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:32:12 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshift11.ms 2026-03-05 01:32:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:32:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:32:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:32:12 INFO MSTransformManager::open Select data 2026-03-05 01:32:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:32:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-03-05 01:32:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 1h27m38.337s +5d25m38.886s' successfully parsed for field 0 2026-03-05 01:32:17 INFO phaseshift::::casa Shift phase center 2026-03-05 01:32:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:32:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:32:11.944721 End time: 2026-03-05 01:32:17.635155 2026-03-05 01:32:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:32:18 INFO phaseshift::::casa ########################################## .2026-03-05 01:32:18 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:32:18 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'GALACTIC 19h53m50 40d06m00', '2': 'GALACTIC 22h01m02 40d04m03'} ) 2026-03-05 01:32:18 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-03-05 01:32:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:32:18 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-03-05 01:32:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:32:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:32:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:32:18 INFO MSTransformManager::open Select data 2026-03-05 01:32:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:32:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-03-05 01:32:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 19h53m50 40d06m00' successfully parsed for field 0 2026-03-05 01:32:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 22h01m02 40d04m03' successfully parsed for field 2 2026-03-05 01:32:21 INFO phaseshift::::casa Shift phase center 2026-03-05 01:32:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:32:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:32:17.721579 End time: 2026-03-05 01:32:22.153531 2026-03-05 01:32:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:32:22 INFO phaseshift::::casa ########################################## .2026-03-05 01:32:22 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:32:22 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'} ) 2026-03-05 01:32:22 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-03-05 01:32:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:32:22 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-03-05 01:32:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:32:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:32:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:32:22 INFO MSTransformManager::open Select data 2026-03-05 01:32:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:32:26 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-03-05 01:32:26 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-03-05 01:32:27 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-03-05 01:32:27 INFO phaseshift::::casa Traceback (most recent call last): 2026-03-05 01:32:27 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-03-05 01:32:27 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'] ) 2026-03-05 01:32:27 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:32:27 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-03-05 01:32:27 INFO phaseshift::::casa+ mtlocal.open() 2026-03-05 01:32:27 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-03-05 01:32:27 INFO phaseshift::::casa+ return self._swigobj.open() 2026-03-05 01:32:27 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:32:27 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-03-05 01:32:27 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-03-05 01:32:27 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:32:27 INFO phaseshift::::casa+ RuntimeError: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-03-05 01:32:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:32:22.256066 End time: 2026-03-05 01:32:26.537371 2026-03-05 01:32:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:32:27 INFO phaseshift::::casa ########################################## .2026-03-05 01:32:27 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:32:27 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'} ) 2026-03-05 01:32:27 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-03-05 01:32:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:32:27 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-03-05 01:32:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:32:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:32:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:32:27 INFO MSTransformManager::open Select data 2026-03-05 01:32:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:32:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-03-05 01:32:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-03-05 01:32:30 INFO phaseshift::::casa Shift phase center 2026-03-05 01:32:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:32:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:32:26.616765 End time: 2026-03-05 01:32:30.720170 2026-03-05 01:32:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:32:31 INFO phaseshift::::casa ########################################## .2026-03-05 01:32:31 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:32:31 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'} ) 2026-03-05 01:32:31 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-03-05 01:32:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:32:31 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-03-05 01:32:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:32:31 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-03-05 01:32:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:32:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:32:31 INFO MSTransformManager::open Select data 2026-03-05 01:32:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:32:31 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-03-05 01:32:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-03-05 01:32:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 1 2026-03-05 01:32:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 22h01m02 40d04m03' successfully parsed for field 2 2026-03-05 01:32:35 INFO phaseshift::::casa Shift phase center 2026-03-05 01:32:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:32:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:32:30.852184 End time: 2026-03-05 01:32:36.019562 2026-03-05 01:32:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:32:36 INFO phaseshift::::casa ########################################## .2026-03-05 01:32:36 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:32:36 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'} ) 2026-03-05 01:32:36 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-03-05 01:32:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:32:36 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-03-05 01:32:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:32:36 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-03-05 01:32:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:32:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:32:36 INFO MSTransformManager::open Select data 2026-03-05 01:32:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:32:36 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-03-05 01:32:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-03-05 01:32:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m50 40d06m00' successfully parsed for field 0 2026-03-05 01:32:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 22h01m02 40d04m03' successfully parsed for field 2 2026-03-05 01:32:39 INFO phaseshift::::casa Shift phase center 2026-03-05 01:32:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:32:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:32:36.120989 End time: 2026-03-05 01:32:40.492460 2026-03-05 01:32:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:32:40 INFO phaseshift::::casa ########################################## .2026-03-05 01:32:41 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:32:41 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' ) 2026-03-05 01:32:41 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-03-05 01:32:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:32:41 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-03-05 01:32:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:32:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:32:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:32:41 INFO MSTransformManager::open Select data 2026-03-05 01:32:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:32:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:32:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-03-05 01:32:45 INFO phaseshift::::casa Shift phase center 2026-03-05 01:32:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:32:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:32:40.592780 End time: 2026-03-05 01:32:45.997897 2026-03-05 01:32:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:32:46 INFO phaseshift::::casa ########################################## ..2026-03-05 01:32:46 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) Requested JD 0 is outside the range of the IERS (Earth axis data) table. 2026-03-05 01:32:46 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) + Calculations will proceed with less precision ..2026-03-05 01:32:47 SEVERE Error in QuantumHolder::fromString with input string "xxh53m50": Illegal input units or format 2026-03-05 01:32:47 SEVERE + in converting quantity from string 2026-03-05 01:32:47 SEVERE Exception Reported: Empty QuantumHolder argument for asQuantumDouble 2026-03-05 01:32:47 SEVERE Exception Reports: Empty QuantumHolder argument for asQuantumDouble 2026-03-05 01:32:47 SEVERE phaseshift::::casa *** Error measures.direction() failed for phasecenter string: BOGUS xxh53m50 40d06m00 when interpreting parameter 'phasecenter': ...2026-03-05 01:32:49 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:32:49 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' ) 2026-03-05 01:32:49 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-03-05 01:32:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:32:49 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:32:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:32:49 INFO MSTransformManager::parseDataSelParams array selection is 1 2026-03-05 01:32:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:32:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:32:49 INFO MSTransformManager::open Select data 2026-03-05 01:32:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:32:49 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-03-05 01:32:49 INFO phaseshift::::casa Traceback (most recent call last): 2026-03-05 01:32:49 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-03-05 01:32:49 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-03-05 01:32:49 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:32:49 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-03-05 01:32:49 INFO phaseshift::::casa+ mtlocal.open() 2026-03-05 01:32:49 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-03-05 01:32:49 INFO phaseshift::::casa+ return self._swigobj.open() 2026-03-05 01:32:49 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:32:49 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-03-05 01:32:49 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-03-05 01:32:49 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:32:49 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-03-05 01:32:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:32:48.769204 End time: 2026-03-05 01:32:48.810090 2026-03-05 01:32:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:32:49 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:49 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:32:49 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' ) 2026-03-05 01:32:49 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-03-05 01:32:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:32:49 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:32:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:32:49 INFO MSTransformManager::parseDataSelParams array selection is 0 2026-03-05 01:32:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:32:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:32:49 INFO MSTransformManager::open Select data 2026-03-05 01:32:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:32:52 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-03-05 01:32:52 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-03-05 01:32:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:32:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-03-05 01:32:54 INFO phaseshift::::casa Shift phase center 2026-03-05 01:32:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:32:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:32:48.811306 End time: 2026-03-05 01:32:55.098599 2026-03-05 01:32:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:32:55 INFO phaseshift::::casa ########################################## .2026-03-05 01:32:56 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:32:56 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' ) 2026-03-05 01:32:56 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-03-05 01:32:56 INFO MSTransformManager::parseMsSpecParams Data column is MODEL 2026-03-05 01:32:56 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:32:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:32:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:32:56 WARN MSTransformManager::checkDataColumnsToFill MODEL_DATA column requested but not available in input MS 2026-03-05 01:32:56 INFO MSTransformManager::open Select data 2026-03-05 01:32:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:32:56 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). 2026-03-05 01:32:56 INFO phaseshift::::casa Traceback (most recent call last): 2026-03-05 01:32:56 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-03-05 01:32:56 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'] ) 2026-03-05 01:32:56 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:32:56 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-03-05 01:32:56 INFO phaseshift::::casa+ mtlocal.open() 2026-03-05 01:32:56 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-03-05 01:32:56 INFO phaseshift::::casa+ return self._swigobj.open() 2026-03-05 01:32:56 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:32:56 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-03-05 01:32:56 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-03-05 01:32:56 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:32:56 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). 2026-03-05 01:32:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:32:56.122585 End time: 2026-03-05 01:32:56.156020 2026-03-05 01:32:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:32:56 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:56 INFO phaseshift::::casa ########################################## 2026-03-05 01:32:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:32:56 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' ) 2026-03-05 01:32:56 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-03-05 01:32:56 INFO MSTransformManager::parseMsSpecParams Data column is DATA 2026-03-05 01:32:56 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:32:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:32:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:32:56 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:32:56 INFO MSTransformManager::open Select data 2026-03-05 01:32:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:32:59 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-03-05 01:32:59 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-03-05 01:33:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:33:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-03-05 01:33:01 INFO phaseshift::::casa Shift phase center 2026-03-05 01:33:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:33:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:32:56.157096 End time: 2026-03-05 01:33:02.178646 2026-03-05 01:33:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:33:02 INFO phaseshift::::casa ########################################## .2026-03-05 01:33:03 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:33:03 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' ) 2026-03-05 01:33:03 INFO MSTransformManager::parseMsSpecParams Input file name is Itziar_copy.ms 2026-03-05 01:33:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:33:03 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:33:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:33:03 INFO MSTransformManager::parseDataSelParams field selection is 2 2026-03-05 01:33:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:33:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:33:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:33:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:33:03 INFO MSTransformManager::open Select data 2026-03-05 01:33:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:33:03 INFO MSTransformDataHandler::makeSelection 6125 out of 245000 rows are going to be considered due to the selection criteria. 2026-03-05 01:33:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:33:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 00h00m01 -29d55m40' successfully parsed 2026-03-05 01:33:06 INFO phaseshift::::casa Shift phase center 2026-03-05 01:33:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:33:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:33:03.153767 End time: 2026-03-05 01:33:06.640285 2026-03-05 01:33:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:33:07 INFO phaseshift::::casa ########################################## .2026-03-05 01:33:08 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:33:08 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' ) 2026-03-05 01:33:08 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-03-05 01:33:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:33:08 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:33:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:33:08 INFO MSTransformManager::parseDataSelParams scan intent selection is *FLUX* 2026-03-05 01:33:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:33:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:33:08 INFO MSTransformManager::open Select data 2026-03-05 01:33:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:33:08 INFO MSTransformDataHandler::makeSelection 570 out of 6270 rows are going to be considered due to the selection criteria. 2026-03-05 01:33:10 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-03-05 01:33:10 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-03-05 01:33:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:33:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-03-05 01:33:12 INFO phaseshift::::casa Shift phase center 2026-03-05 01:33:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:33:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:33:07.570776 End time: 2026-03-05 01:33:12.559617 2026-03-05 01:33:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:33:13 INFO phaseshift::::casa ########################################## .2026-03-05 01:33:14 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:33:14 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' ) 2026-03-05 01:33:14 INFO MSTransformManager::parseMsSpecParams Input file name is mms_copy.mms 2026-03-05 01:33:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:33:14 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:33:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:33:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:33:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:33:14 INFO MSTransformManager::open Select data 2026-03-05 01:33:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:33:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:33:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 05h30m48 13d31m48' successfully parsed 2026-03-05 01:33:17 INFO phaseshift::::casa Shift phase center 2026-03-05 01:33:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:33:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:33:13.572354 End time: 2026-03-05 01:33:18.104406 2026-03-05 01:33:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:33:18 INFO phaseshift::::casa ########################################## .2026-03-05 01:33:19 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:33:19 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' ) 2026-03-05 01:33:19 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-03-05 01:33:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:33:19 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:33:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:33:19 INFO MSTransformManager::parseDataSelParams observation selection is 1 2026-03-05 01:33:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:33:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:33:19 INFO MSTransformManager::open Select data 2026-03-05 01:33:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:33:19 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-03-05 01:33:19 INFO phaseshift::::casa Traceback (most recent call last): 2026-03-05 01:33:19 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-03-05 01:33:19 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-03-05 01:33:19 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:33:19 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-03-05 01:33:19 INFO phaseshift::::casa+ mtlocal.open() 2026-03-05 01:33:19 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-03-05 01:33:19 INFO phaseshift::::casa+ return self._swigobj.open() 2026-03-05 01:33:19 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:33:19 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-03-05 01:33:19 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-03-05 01:33:19 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:33:19 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-03-05 01:33:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:33:19.052575 End time: 2026-03-05 01:33:19.093896 2026-03-05 01:33:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:33:19 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:19 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:33:19 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' ) 2026-03-05 01:33:19 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-03-05 01:33:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:33:19 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:33:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:33:19 INFO MSTransformManager::parseDataSelParams observation selection is 0 2026-03-05 01:33:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:33:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:33:19 INFO MSTransformManager::open Select data 2026-03-05 01:33:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:33:22 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-03-05 01:33:22 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-03-05 01:33:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:33:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-03-05 01:33:23 INFO phaseshift::::casa Shift phase center 2026-03-05 01:33:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:33:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:33:19.095066 End time: 2026-03-05 01:33:24.296894 2026-03-05 01:33:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:33:24 INFO phaseshift::::casa ########################################## .2026-03-05 01:33:25 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:33:25 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-03-05 01:33:25 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-03-05 01:33:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:33:25 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:33:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:33:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:33:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:33:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:33:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:33:25 INFO MSTransformManager::open Select data 2026-03-05 01:33:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:33:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:33:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-03-05 01:33:28 INFO phaseshift::::casa Shift phase center 2026-03-05 01:33:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:33:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:33:25.257368 End time: 2026-03-05 01:33:30.132629 2026-03-05 01:33:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:33:30 INFO phaseshift::::casa ########################################## .2026-03-05 01:33:31 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:33:31 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='' ) 2026-03-05 01:33:31 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: phasecenter parameter must be specified 2026-03-05 01:33:31 INFO phaseshift::::casa Traceback (most recent call last): 2026-03-05 01:33:31 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-03-05 01:33:31 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'] ) 2026-03-05 01:33:31 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-03-05 01:33:31 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.5-5-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 31, in phaseshift 2026-03-05 01:33:31 INFO phaseshift::::casa+ raise ValueError("phasecenter parameter must be specified") 2026-03-05 01:33:31 INFO phaseshift::::casa+ ValueError: phasecenter parameter must be specified 2026-03-05 01:33:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:33:31.026343 End time: 2026-03-05 01:33:31.027622 2026-03-05 01:33:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:33:31 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:31 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:33:31 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' ) 2026-03-05 01:33:31 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-03-05 01:33:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:33:31 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:33:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:33:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:33:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:33:31 INFO MSTransformManager::open Select data 2026-03-05 01:33:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:33:34 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-03-05 01:33:34 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-03-05 01:33:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:33:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -08d23m35' successfully parsed 2026-03-05 01:33:36 INFO phaseshift::::casa Shift phase center 2026-03-05 01:33:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:33:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:33:31.028799 End time: 2026-03-05 01:33:37.095423 2026-03-05 01:33:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:33:37 INFO phaseshift::::casa ########################################## .2026-03-05 01:33:38 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:33:38 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='00h06m14 -08d23m35' ) 2026-03-05 01:33:38 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-03-05 01:33:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:33:38 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:33:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:33:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:33:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:33:38 INFO MSTransformManager::open Select data 2026-03-05 01:33:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:33:41 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-03-05 01:33:41 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-03-05 01:33:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:33:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center '00h06m14 -08d23m35' successfully parsed 2026-03-05 01:33:42 INFO phaseshift::::casa Shift phase center 2026-03-05 01:33:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:33:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:33:38.085955 End time: 2026-03-05 01:33:43.246751 2026-03-05 01:33:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:33:43 INFO phaseshift::::casa ########################################## .2026-03-05 01:33:44 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:33:44 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' ) 2026-03-05 01:33:44 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-03-05 01:33:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:33:44 INFO MSTransformManager::parseMsSpecParams Output file name is post_phaseshift.ms 2026-03-05 01:33:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:33:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:33:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:33:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:33:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:33:44 INFO MSTransformManager::open Select data 2026-03-05 01:33:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:33:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:33:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-03-05 01:33:47 INFO phaseshift::::casa Shift phase center 2026-03-05 01:33:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:33:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:33:44.287144 End time: 2026-03-05 01:33:49.157378 2026-03-05 01:33:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:33:49 INFO phaseshift::::casa ########################################## 2026-03-05 01:33:49 INFO tclean::::casa ########################################## 2026-03-05 01:33:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:33:49 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 ) 2026-03-05 01:33:49 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:33:49 INFO SynthesisImagerVi2::selectData MS : datacopy.ms | [Opened in readonly mode] 2026-03-05 01:33:49 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-03-05 01:33:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-03-05 01:33:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-03-05 01:33:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:33:49 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-03-05 01:33:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_pre] with ftmachine : wprojectft 2026-03-05 01:33:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 11.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:33:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:33:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_pre] : hogbom 2026-03-05 01:33:49 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:33:50 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-03-05 01:33:50 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-03-05 01:33:50 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-03-05 01:33:50 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-03-05 01:34:16 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 2026-03-05 01:34:16 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 0%....10....20....30....40....50....60....70....80....90....100% 2026-03-05 01:34:50 INFO SIImageStore::calcSensitivity [im2_pre] Theoretical sensitivity (Jy/bm):0.00204403 2026-03-05 01:34:50 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.099614 2026-03-05 01:34:50 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-03-05 01:34:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:34:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:34:54 INFO task_tclean::SDAlgorithmBase::restore [im2_pre] : Restoring model image. 2026-03-05 01:34:54 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. 2026-03-05 01:34:58 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-03-05 01:34:58 INFO tclean::::casa Searching for images with prefix 'im2_pre'... Found these, writing history into them: ['im2_pre.image', 'im2_pre.sumwt', 'im2_pre.residual', 'im2_pre.model', 'im2_pre.psf', 'im2_pre.pb'] 2026-03-05 01:35:00 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:33:49.249049 End time: 2026-03-05 01:34:59.917951 2026-03-05 01:35:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:35:00 INFO tclean::::casa ########################################## 2026-03-05 01:35:00 INFO tclean::::casa ########################################## 2026-03-05 01:35:00 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:35:00 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 ) 2026-03-05 01:35:00 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:35:00 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-03-05 01:35:00 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-03-05 01:35:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-03-05 01:35:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-03-05 01:35:00 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:35:00 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-03-05 01:35:00 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift] with ftmachine : wprojectft 2026-03-05 01:35:00 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 11.01 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:35:00 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:35:00 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift] : hogbom 2026-03-05 01:35:00 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:35:01 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-03-05 01:35:01 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-03-05 01:35:01 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-03-05 01:35:01 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-03-05 01:35:25 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 2026-03-05 01:35:25 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 2026-03-05 01:35:28 INFO SIImageStore::calcSensitivity [im2_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00204403 2026-03-05 01:35:28 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.090992 2026-03-05 01:35:28 INFO SIImageStore::printBeamSet Beam : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-03-05 01:35:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:35:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:35:33 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift] : Restoring model image. 2026-03-05 01:35:33 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. 2026-03-05 01:35:34 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-03-05 01:35:35 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift'... Found these, writing history into them: ['im2_post_phaseshift.sumwt', 'im2_post_phaseshift.model', 'im2_post_phaseshift.residual', 'im2_post_phaseshift.pb', 'im2_post_phaseshift.psf', 'im2_post_phaseshift.image'] 2026-03-05 01:35:36 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:34:59.964707 End time: 2026-03-05 01:35:36.408879 2026-03-05 01:35:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:35:36 INFO tclean::::casa ########################################## 2026-03-05 01:35:36 INFO tclean::::casa ########################################## 2026-03-05 01:35:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:35:36 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 ) 2026-03-05 01:35:36 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:35:36 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-03-05 01:35:36 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-03-05 01:35:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-03-05 01:35:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-03-05 01:35:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:35:37 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-03-05 01:35:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift_tclean_phasecenter] with ftmachine : wprojectft 2026-03-05 01:35:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 11.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:35:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:35:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift_tclean_phasecenter] : hogbom 2026-03-05 01:35:37 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:35:37 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-03-05 01:35:37 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-03-05 01:35:37 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-03-05 01:35:37 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-03-05 01:36:01 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-03-05 01:36:01 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 2026-03-05 01:36:04 INFO SIImageStore::calcSensitivity [im2_post_phaseshift_tclean_phasecenter] Theoretical sensitivity (Jy/bm):0.00204403 2026-03-05 01:36:04 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.091752 2026-03-05 01:36:04 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-03-05 01:36:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:36:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:36:09 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift_tclean_phasecenter] : Restoring model image. 2026-03-05 01:36:10 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. 2026-03-05 01:36:11 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-03-05 01:36:11 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift_tclean_phasecenter'... Found these, writing history into them: ['im2_post_phaseshift_tclean_phasecenter.model', 'im2_post_phaseshift_tclean_phasecenter.image', 'im2_post_phaseshift_tclean_phasecenter.residual', 'im2_post_phaseshift_tclean_phasecenter.sumwt', 'im2_post_phaseshift_tclean_phasecenter.pb', 'im2_post_phaseshift_tclean_phasecenter.psf'] 2026-03-05 01:36:13 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:35:36.444449 End time: 2026-03-05 01:36:12.534529 2026-03-05 01:36:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:36:13 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} .2026-03-05 01:36:14 INFO phaseshift::::casa ########################################## 2026-03-05 01:36:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:36:14 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' ) 2026-03-05 01:36:14 INFO MSTransformManager::parseMsSpecParams Input file name is ngc_copy.ms 2026-03-05 01:36:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:36:14 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:36:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:36:14 INFO MSTransformManager::parseDataSelParams spw selection is 1 2026-03-05 01:36:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:36:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:36:14 INFO MSTransformManager::initDataSelectionParams Selected SPWs Ids are Axis Lengths: [1, 4] (NB: Matrix in Row/Column order) 2026-03-05 01:36:14 INFO MSTransformManager::initDataSelectionParams+ [1, 0, 4, 1] 2026-03-05 01:36:14 INFO MSTransformManager::open Select data 2026-03-05 01:36:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:36:14 INFO MSTransformDataHandler::makeSelection 13338 out of 26676 rows are going to be considered due to the selection criteria. 2026-03-05 01:36:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:36:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 23h11m54 61d10m54' successfully parsed 2026-03-05 01:36:16 INFO phaseshift::::casa Shift phase center 2026-03-05 01:36:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:36:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:36:13.736173 End time: 2026-03-05 01:36:17.161987 2026-03-05 01:36:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:36:17 INFO phaseshift::::casa ########################################## .2026-03-05 01:36:18 INFO phaseshift::::casa ########################################## 2026-03-05 01:36:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:36:18 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-03-05 01:36:18 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-03-05 01:36:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:36:18 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-03-05 01:36:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:36:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:36:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:36:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:36:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:36:18 INFO MSTransformManager::open Select data 2026-03-05 01:36:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:36:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:36:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-03-05 01:36:21 INFO phaseshift::::casa Shift phase center 2026-03-05 01:36:23 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:36:23 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:36:18.153551 End time: 2026-03-05 01:36:23.055546 2026-03-05 01:36:23 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:36:23 INFO phaseshift::::casa ########################################## .2026-03-05 01:36:24 INFO phaseshift::::casa ########################################## 2026-03-05 01:36:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:36:24 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' ) 2026-03-05 01:36:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:36:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:36:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:36:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:36:24 INFO MSTransformManager::parseDataSelParams field selection is 0 2026-03-05 01:36:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:36:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:36:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:36:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:36:24 INFO MSTransformManager::open Select data 2026-03-05 01:36:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:36:24 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-03-05 01:36:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:36:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-03-05 01:36:27 INFO phaseshift::::casa Shift phase center 2026-03-05 01:36:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:36:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:36:23.531063 End time: 2026-03-05 01:36:27.622918 2026-03-05 01:36:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:36:28 INFO phaseshift::::casa ########################################## 2026-03-05 01:36:28 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-03-05 01:36:28 INFO tclean::::casa ########################################## 2026-03-05 01:36:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:36:28 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 ) 2026-03-05 01:36:28 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:36:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:36:28 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-03-05 01:36:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:36:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:36:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:36:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-03-05 01:36:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:36:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:36:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:36:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:36:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:36:29 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-03-05 01:36:29 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026436 2026-03-05 01:36:29 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-03-05 01:36:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:36:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:36:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:36:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:36:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:36:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:36:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:36:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-03-05 01:36:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:36:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:36:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:36:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:36:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:36:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-03-05 01:36:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-03-05 01:36:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:36:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:36:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-03-05 01:36:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:36:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-03-05 01:36:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-03-05 01:36:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:36:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:36:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-03-05 01:36:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:36:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-03-05 01:36:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-03-05 01:36:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:36:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:36:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-03-05 01:36:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:36:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:36:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:36:37 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-03-05 01:36:37 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:36:38 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:36:27.783179 End time: 2026-03-05 01:36:38.320384 2026-03-05 01:36:38 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:36:38 INFO tclean::::casa ########################################## 2026-03-05 01:36:38 INFO imstat::::casa ########################################## 2026-03-05 01:36:38 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:36:38 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 ) 2026-03-05 01:36:38 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:36:38 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:36:38 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:36:38 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:36:38 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:36:38 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) 2026-03-05 01:36:38 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:36:38 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:36:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:36:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:36:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-03-05 01:36:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-03-05 01:36:38 INFO imstat:::: Values --- 2026-03-05 01:36:38 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-03-05 01:36:38 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:36:38 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:36:38 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-03-05 01:36:38 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-03-05 01:36:38 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-03-05 01:36:38 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-03-05 01:36:38 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-03-05 01:36:38 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-03-05 01:36:38 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-03-05 01:36:38 INFO imstat:::: Statistics --- 2026-03-05 01:36:38 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-03-05 01:36:38 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-03-05 01:36:38 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-03-05 01:36:38 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-03-05 01:36:38 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-03-05 01:36:38 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-03-05 01:36:38 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-03-05 01:36:38 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-03-05 01:36:38 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-03-05 01:36:38 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:36:38 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:36:38 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:36:38 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:36:38 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:36:38 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:36:38 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 2026-03-05 01:36:38 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:36:38.342330 End time: 2026-03-05 01:36:38.376156 2026-03-05 01:36:38 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:36:38 INFO imstat::::casa ########################################## 2026-03-05 01:36:38 INFO phaseshift::::casa ########################################## 2026-03-05 01:36:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:36:38 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' ) 2026-03-05 01:36:38 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:36:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:36:38 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:36:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:36:38 INFO MSTransformManager::parseDataSelParams field selection is fake 2026-03-05 01:36:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:36:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:36:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:36:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:36:38 INFO MSTransformManager::open Select data 2026-03-05 01:36:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:36:38 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-03-05 01:36:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:36:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-03-05 01:36:42 INFO phaseshift::::casa Shift phase center 2026-03-05 01:36:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:36:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:36:38.389924 End time: 2026-03-05 01:36:42.418598 2026-03-05 01:36:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:36:42 INFO phaseshift::::casa ########################################## 2026-03-05 01:36:42 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-03-05 01:36:42 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-03-05 01:36:42 INFO tclean::::casa ########################################## 2026-03-05 01:36:42 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:36:42 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-03-05 01:36:42 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:36:42 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:36:42 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-03-05 01:36:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:36:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:36:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:36:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-03-05 01:36:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:36:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.02 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:36:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:36:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:36:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:36:44 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-03-05 01:36:44 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026401 2026-03-05 01:36:44 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-03-05 01:36:44 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:36:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:36:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:36:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:36:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:36:46 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:36:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:36:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-03-05 01:36:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:36:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:36:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:36:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:36:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:36:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-03-05 01:36:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-03-05 01:36:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:36:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:36:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-03-05 01:36:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:36:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-03-05 01:36:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-03-05 01:36:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:36:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:36:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-03-05 01:36:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:36:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-03-05 01:36:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-03-05 01:36:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:36:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:36:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-03-05 01:36:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:36:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:36:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:36:51 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-03-05 01:36:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:36:53 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:36:42.471111 End time: 2026-03-05 01:36:52.587028 2026-03-05 01:36:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:36:53 INFO tclean::::casa ########################################## 2026-03-05 01:36:53 INFO imstat::::casa ########################################## 2026-03-05 01:36:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:36:53 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 ) 2026-03-05 01:36:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:36:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:36:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:36:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:36:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:36:53 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) 2026-03-05 01:36:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:36:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:36:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:36:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:36:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-03-05 01:36:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-03-05 01:36:53 INFO imstat:::: Values --- 2026-03-05 01:36:53 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-03-05 01:36:53 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:36:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:36:53 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-03-05 01:36:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-03-05 01:36:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-03-05 01:36:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-03-05 01:36:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-03-05 01:36:53 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-03-05 01:36:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-03-05 01:36:53 INFO imstat:::: Statistics --- 2026-03-05 01:36:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-03-05 01:36:53 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-03-05 01:36:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-03-05 01:36:53 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-03-05 01:36:53 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-03-05 01:36:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-03-05 01:36:53 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-03-05 01:36:53 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-03-05 01:36:53 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-03-05 01:36:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:36:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:36:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:36:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:36:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:36:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:36:53 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 2026-03-05 01:36:53 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:36:52.593757 End time: 2026-03-05 01:36:52.619049 2026-03-05 01:36:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:36:53 INFO imstat::::casa ########################################## 2026-03-05 01:36:53 INFO phaseshift::::casa ########################################## 2026-03-05 01:36:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:36:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-03-05 01:36:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:36:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:36:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:36:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:36:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:36:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:36:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:36:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:36:53 INFO MSTransformManager::open Select data 2026-03-05 01:36:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:36:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:36:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-03-05 01:36:56 INFO phaseshift::::casa Shift phase center 2026-03-05 01:36:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:36:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:36:52.631066 End time: 2026-03-05 01:36:56.572929 2026-03-05 01:36:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:36:57 INFO phaseshift::::casa ########################################## 2026-03-05 01:36:57 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-03-05 01:36:57 INFO tclean::::casa ########################################## 2026-03-05 01:36:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:36:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-03-05 01:36:57 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:36:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:36:57 INFO SynthesisImagerVi2::selectData NRows selected : 7020 2026-03-05 01:36:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:36:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:36:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:36:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:36:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:36:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.02 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:36:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:36:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:36:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:36:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00843949 2026-03-05 01:36:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021106 2026-03-05 01:36:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-03-05 01:36:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:36:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:36:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:37:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:37:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:37:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:37:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6069034934043884, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:37:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.606903, CycleNiter=20, Gain=0.3 2026-03-05 01:37:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:37:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:37:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:37:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:37:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07140088081359863, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:37:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0714009, CycleNiter=14, Gain=0.3 2026-03-05 01:37:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-03-05 01:37:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:37:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:37:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-03-05 01:37:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00840018317103386, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:37:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00840018, CycleNiter=8, Gain=0.3 2026-03-05 01:37:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-03-05 01:37:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:37:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:37:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814189, over full image : 0.00814189 2026-03-05 01:37:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009882674785330892, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:37:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000988267, CycleNiter=2, Gain=0.3 2026-03-05 01:37:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814189->0.00279267, Reached cycleniter. 2026-03-05 01:37:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:37:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:37:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0027928, over full image : 0.0027928 2026-03-05 01:37:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:37:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:37:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:37:06 INFO SIImageStore::restore Beam for chan : 0 : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-03-05 01:37:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:37:07 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:36:56.689582 End time: 2026-03-05 01:37:07.044735 2026-03-05 01:37:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:37:07 INFO tclean::::casa ########################################## 2026-03-05 01:37:07 INFO imstat::::casa ########################################## 2026-03-05 01:37:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:37:07 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 ) 2026-03-05 01:37:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:37:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:37:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:37:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:37:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:37:07 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) 2026-03-05 01:37:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:37:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:37:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:37:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:37:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 999981604.64Hz 2026-03-05 01:37:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 999981604.64Hz 2026-03-05 01:37:07 INFO imstat:::: Values --- 2026-03-05 01:37:07 INFO imstat:::: -- flux density [flux]: 4.99444 Jy 2026-03-05 01:37:07 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:37:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:37:07 INFO imstat:::: -- minimum value [min]: -9.70533e-05 Jy/beam 2026-03-05 01:37:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-03-05 01:37:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [158, 70, 0, 0] 2026-03-05 01:37:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981604.64Hz 2026-03-05 01:37:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:29.120, +39.58.47.882, I, 999981604.64Hz 2026-03-05 01:37:07 INFO imstat:::: -- Sum of pixel values [sum]: 610.203 Jy/beam 2026-03-05 01:37:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1527.26 Jy/beam.Jy/beam 2026-03-05 01:37:07 INFO imstat:::: Statistics --- 2026-03-05 01:37:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00931096 Jy/beam 2026-03-05 01:37:07 INFO imstat:::: -- Variance of the pixel values : 0.0232178 Jy/beam 2026-03-05 01:37:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152374 Jy/beam 2026-03-05 01:37:07 INFO imstat:::: -- Root mean square [rms]: 0.152657 Jy/beam 2026-03-05 01:37:07 INFO imstat:::: -- Median of the pixel values [median]: -1.85752e-05 Jy/beam 2026-03-05 01:37:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.83975e-05 Jy/beam 2026-03-05 01:37:07 INFO imstat:::: -- IQR [quartile]: 3.74524e-05 Jy/beam 2026-03-05 01:37:07 INFO imstat:::: -- First quartile [q1]: -3.53147e-05 Jy/beam 2026-03-05 01:37:07 INFO imstat:::: -- Third quartile [q3]: 2.13765e-06 Jy/beam 2026-03-05 01:37:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:37:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:37:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:37:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:37:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:37:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:37:07 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 2026-03-05 01:37:07 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:37:07.051244 End time: 2026-03-05 01:37:07.076969 2026-03-05 01:37:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:37:07 INFO imstat::::casa ########################################## 2026-03-05 01:37:07 INFO phaseshift::::casa ########################################## 2026-03-05 01:37:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:37:07 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' ) 2026-03-05 01:37:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:37:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:37:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:37:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:37:07 INFO MSTransformManager::parseDataSelParams field selection is 1 2026-03-05 01:37:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:37:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:37:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:37:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:37:07 INFO MSTransformManager::open Select data 2026-03-05 01:37:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:37:07 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-03-05 01:37:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:37:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-03-05 01:37:10 INFO phaseshift::::casa Shift phase center 2026-03-05 01:37:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:37:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:37:07.090034 End time: 2026-03-05 01:37:10.384807 2026-03-05 01:37:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:37:10 INFO phaseshift::::casa ########################################## 2026-03-05 01:37:10 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-03-05 01:37:11 INFO tclean::::casa ########################################## 2026-03-05 01:37:11 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:37:11 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-03-05 01:37:11 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:37:11 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:37:11 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-03-05 01:37:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:37:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:37:11 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:37:11 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-03-05 01:37:11 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:37:11 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.02 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:37:11 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:37:11 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:37:11 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:37:12 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-03-05 01:37:12 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021794 2026-03-05 01:37:12 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-03-05 01:37:12 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:37:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:37:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-03-05 01:37:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:37:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:37:14 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-03-05 01:37:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:37:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-03-05 01:37:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-03-05 01:37:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:37:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:37:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-03-05 01:37:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:37:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:37:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:37:17 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-03-05 01:37:17 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:37:18 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:37:10.543925 End time: 2026-03-05 01:37:18.073734 2026-03-05 01:37:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:37:18 INFO tclean::::casa ########################################## 2026-03-05 01:37:18 INFO imstat::::casa ########################################## 2026-03-05 01:37:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:37:18 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 ) 2026-03-05 01:37:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:37:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:37:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:37:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:37:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:37:18 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) 2026-03-05 01:37:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:37:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:37:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:37:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:37:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-03-05 01:37:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-03-05 01:37:18 INFO imstat:::: Values --- 2026-03-05 01:37:18 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-03-05 01:37:18 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:37:18 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-03-05 01:37:18 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-03-05 01:37:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-03-05 01:37:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-03-05 01:37:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-03-05 01:37:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-03-05 01:37:18 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-03-05 01:37:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-03-05 01:37:18 INFO imstat:::: Statistics --- 2026-03-05 01:37:18 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-03-05 01:37:18 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-03-05 01:37:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-03-05 01:37:18 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-03-05 01:37:18 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-03-05 01:37:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-03-05 01:37:18 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-03-05 01:37:18 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-03-05 01:37:18 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-03-05 01:37:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:37:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:37:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:37:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:37:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:37:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:37:18 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 2026-03-05 01:37:18 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:37:18.080292 End time: 2026-03-05 01:37:18.115510 2026-03-05 01:37:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:37:18 INFO imstat::::casa ########################################## 2026-03-05 01:37:18 INFO phaseshift::::casa ########################################## 2026-03-05 01:37:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:37:18 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' ) 2026-03-05 01:37:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:37:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:37:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:37:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:37:18 INFO MSTransformManager::parseDataSelParams field selection is pretend 2026-03-05 01:37:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:37:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:37:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:37:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:37:18 INFO MSTransformManager::open Select data 2026-03-05 01:37:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:37:18 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-03-05 01:37:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:37:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-03-05 01:37:21 INFO phaseshift::::casa Shift phase center 2026-03-05 01:37:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:37:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:37:18.129027 End time: 2026-03-05 01:37:21.469395 2026-03-05 01:37:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:37:21 INFO phaseshift::::casa ########################################## 2026-03-05 01:37:21 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-03-05 01:37:21 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-03-05 01:37:22 INFO tclean::::casa ########################################## 2026-03-05 01:37:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:37:22 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 ) 2026-03-05 01:37:22 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:37:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:37:22 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-03-05 01:37:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:37:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:37:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:37:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-03-05 01:37:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:37:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 11.02 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:37:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:37:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:37:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:37:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-03-05 01:37:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021583 2026-03-05 01:37:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-03-05 01:37:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:37:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:37:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-03-05 01:37:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:37:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:37:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-03-05 01:37:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:37:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-03-05 01:37:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-03-05 01:37:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:37:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:37:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-03-05 01:37:26 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:37:26 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:37:26 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:37:27 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-03-05 01:37:27 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:37:28 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:37:21.523338 End time: 2026-03-05 01:37:28.252338 2026-03-05 01:37:28 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:37:28 INFO tclean::::casa ########################################## 2026-03-05 01:37:28 INFO imstat::::casa ########################################## 2026-03-05 01:37:28 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:37:28 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:37:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:37:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:37:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:37:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:37:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:37:28 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) 2026-03-05 01:37:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:37:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:37:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:37:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:37:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-03-05 01:37:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-03-05 01:37:28 INFO imstat:::: Values --- 2026-03-05 01:37:28 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-03-05 01:37:28 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:37:28 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-03-05 01:37:28 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-03-05 01:37:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-03-05 01:37:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-03-05 01:37:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-03-05 01:37:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-03-05 01:37:28 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-03-05 01:37:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-03-05 01:37:28 INFO imstat:::: Statistics --- 2026-03-05 01:37:28 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-03-05 01:37:28 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-03-05 01:37:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-03-05 01:37:28 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-03-05 01:37:28 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-03-05 01:37:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-03-05 01:37:28 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-03-05 01:37:28 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-03-05 01:37:28 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-03-05 01:37:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:37:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:37:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:37:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:37:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:37:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:37:28 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 2026-03-05 01:37:28 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:37:28.258731 End time: 2026-03-05 01:37:28.294800 2026-03-05 01:37:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:37:28 INFO imstat::::casa ########################################## .2026-03-05 01:37:29 INFO tclean::::casa ########################################## 2026-03-05 01:37:29 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:37:29 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 ) 2026-03-05 01:37:29 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:37:29 INFO SynthesisImagerVi2::selectData MS : sim_data.ms | [Opened in readonly mode] 2026-03-05 01:37:29 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:37:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-03-05 01:37:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-03-05 01:37:29 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:37:29 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [9.99981e+08] at [0] with increment [1e+08] 2026-03-05 01:37:29 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_orig] with ftmachine : wprojectft 2026-03-05 01:37:29 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 11.02 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:37:29 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:37:29 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_orig] : hogbom 2026-03-05 01:37:29 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:37:29 INFO task_tclean::WPConvFunc::findConvFunction W projection using 128 planes 2026-03-05 01:37:29 INFO task_tclean::WPConvFunc::findConvFunction Using maximum possible W = 6445.78 (wavelengths) 2026-03-05 01:37:29 INFO task_tclean::WPConvFunc::findConvFunction Typical wavelength = 0.299799 (m) 2026-03-05 01:37:29 INFO task_tclean::WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.399639 wavelengths per pixel 2026-03-05 01:37:52 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 2026-03-05 01:37:52 INFO task_tclean::WPConvFunc::findConvFunction Memory used in gridding function = 14 MB from maximum 15884 MB 2026-03-05 01:37:55 INFO task_tclean::SIImageStore::calcSensitivity [im_orig] Theoretical sensitivity (Jy/bm):0.00889437 2026-03-05 01:37:55 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.101575 2026-03-05 01:37:55 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-03-05 01:37:55 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:37:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:37:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 4.94899 2026-03-05 01:37:59 INFO SynthesisDeconvolver::setupMask [im_orig] Initializing new mask to 1.0 for the full image 2026-03-05 01:37:59 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 % ] 2026-03-05 01:37:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 4.94899, over full image : 4.94899 2026-03-05 01:37:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.5971387624740601, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:37:59 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.597139, CycleNiter=20, Gain=0.3 2026-03-05 01:38:00 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=0->4.6028, peakres=4.94899->0.435227, Reached cyclethreshold. 2026-03-05 01:38:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 7 iterations. 2026-03-05 01:38:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:38:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.45574, over full image : 0.45574 2026-03-05 01:38:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 13, 'cyclethreshold': 0.05498892068862915, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:04 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.0549889, CycleNiter=13, Gain=0.3 2026-03-05 01:38:05 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=4.6028->5.02619, peakres=0.45574->0.0435268, Reached cyclethreshold. 2026-03-05 01:38:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 14 iterations. 2026-03-05 01:38:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:38:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0416506, over full image : 0.0416506 2026-03-05 01:38:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 6, 'cyclethreshold': 0.005025505553930998, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:08 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.00502551, CycleNiter=6, Gain=0.3 2026-03-05 01:38:09 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->6 [6], model=5.02619->5.04001, peakres=0.0416506->0.0226678, Reached cycleniter. 2026-03-05 01:38:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:38:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:38:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.022671, over full image : 0.022671 2026-03-05 01:38:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:38:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:38:13 INFO SDAlgorithmBase::restore [im_orig] : Restoring model image. 2026-03-05 01:38:14 INFO SIImageStore::restore Beam for chan : 0 : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-03-05 01:38:14 INFO tclean::::casa Searching for images with prefix 'im_orig'... Found these, writing history into them: ['im_orig.sumwt', 'im_orig.psf', 'im_orig.model', 'im_orig.residual', 'im_orig.pb', 'im_orig.image', 'im_orig.mask'] 2026-03-05 01:38:16 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:37:28.605085 End time: 2026-03-05 01:38:15.705940 2026-03-05 01:38:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:38:16 INFO tclean::::casa ########################################## 2026-03-05 01:38:16 INFO imstat::::casa ########################################## 2026-03-05 01:38:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:38:16 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 ) 2026-03-05 01:38:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:38:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:38:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:38:16 INFO imstat::image::statistics Determining stats for image im_orig.image 2026-03-05 01:38:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:38:16 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) 2026-03-05 01:38:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:38:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:38:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:38:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [2047, 2047, 0, 0] 2026-03-05 01:38:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 20:11:05.220, +38.21.11.967, I, 999980841.3Hz 2026-03-05 01:38:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:47:03.322, +42.54.02.996, I, 999980841.3Hz 2026-03-05 01:38:16 INFO imstat:::: Values --- 2026-03-05 01:38:16 INFO imstat:::: -- flux density [flux]: 5.2713 Jy 2026-03-05 01:38:16 INFO imstat:::: -- number of points [npts]: 4.1943e+06 2026-03-05 01:38:16 INFO imstat:::: -- maximum value [max]: 4.97713 Jy/beam 2026-03-05 01:38:16 INFO imstat:::: -- minimum value [min]: -0.022671 Jy/beam 2026-03-05 01:38:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [1509, 773, 0, 0] 2026-03-05 01:38:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [1708, 965, 0, 0] 2026-03-05 01:38:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.302, +40.06.02.372, I, 999980841.3Hz 2026-03-05 01:38:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:51:28.525, +40.31.07.260, I, 999980841.3Hz 2026-03-05 01:38:16 INFO imstat:::: -- Sum of pixel values [sum]: 641.87 Jy/beam 2026-03-05 01:38:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1619.58 Jy/beam.Jy/beam 2026-03-05 01:38:16 INFO imstat:::: Statistics --- 2026-03-05 01:38:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.000153034 Jy/beam 2026-03-05 01:38:16 INFO imstat:::: -- Variance of the pixel values : 0.000386116 Jy/beam 2026-03-05 01:38:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0196498 Jy/beam 2026-03-05 01:38:16 INFO imstat:::: -- Root mean square [rms]: 0.0196504 Jy/beam 2026-03-05 01:38:16 INFO imstat:::: -- Median of the pixel values [median]: 4.61875e-06 Jy/beam 2026-03-05 01:38:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.003161 Jy/beam 2026-03-05 01:38:16 INFO imstat:::: -- IQR [quartile]: 0.00632194 Jy/beam 2026-03-05 01:38:16 INFO imstat:::: -- First quartile [q1]: -0.00315521 Jy/beam 2026-03-05 01:38:16 INFO imstat:::: -- Third quartile [q3]: 0.00316673 Jy/beam 2026-03-05 01:38:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:38:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:38:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:38:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:38:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:38:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:38:16 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 2026-03-05 01:38:16 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:38:15.711976 End time: 2026-03-05 01:38:16.055867 2026-03-05 01:38:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:38:16 INFO imstat::::casa ########################################## 2026-03-05 01:38:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:38:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:38:16 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) 2026-03-05 01:38:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:38:16 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:38:16 2026****** 2026-03-05 01:38:16 INFO ImageFitter::fit+ 2026-03-05 01:38:16 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:38:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_orig.image 2026-03-05 01:38:16 INFO ImageFitter::fit+ --- region: 2026-03-05 01:38:16 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:38:16 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:38:16 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:38:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:38:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:38:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:38:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:38:16 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) 2026-03-05 01:38:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29832 Jy 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00459192 Jy 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85855 Jy 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00458731 Jy 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ Fit on im_orig.image component 0 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.9885 +/- 0.0032 s (0.0367 arcsec along great circle) 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.0594 +/- 0.0281 arcsec 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- ra: 1509.4535 +/- 0.0046 pixels 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- dec: 772.7181 +/- 0.0035 pixels 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.4778 +/- 0.0014 arcmin 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.2915 +/- 0.0011 arcmin 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.42 +/- 0.26 deg 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.70 arcsec 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.54 arcsec 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- position angle: -89.60 deg 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ Component is a point source 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ An upper limit on its size cannot be determined 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.0049 +/- 0.0079 Jy 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- Peak: 5.0102 +/- 0.0046 Jy/beam 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:38:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9808 MHz (29.97982 cm) 2026-03-05 01:38:16 INFO phaseshift::::casa ########################################## 2026-03-05 01:38:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:38:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-03-05 01:38:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:38:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:38:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:38:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:38:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:38:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:38:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:38:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:38:16 INFO MSTransformManager::open Select data 2026-03-05 01:38:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:38:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:38:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-03-05 01:38:19 INFO phaseshift::::casa Shift phase center 2026-03-05 01:38:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:38:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:38:16.173446 End time: 2026-03-05 01:38:19.809167 2026-03-05 01:38:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:38:20 INFO phaseshift::::casa ########################################## 2026-03-05 01:38:20 INFO tclean::::casa ########################################## 2026-03-05 01:38:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:38:20 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 ) 2026-03-05 01:38:20 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:38:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:38:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:38:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:38:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:38:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:38:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:38:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:38:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:38:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:38:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:38:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:38:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:38:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024699 2026-03-05 01:38:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:38:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:38:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:38:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:38:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:38:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:38:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:38:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:38:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:38:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:38:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:38:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:38:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:38:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:38:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:38:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:38:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:38:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:38:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:38:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:38:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:38:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:38:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:38:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:38:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:38:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:38:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:38:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:38:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:38:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:38:32 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:38:32 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:38:33 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:38:19.914284 End time: 2026-03-05 01:38:33.258799 2026-03-05 01:38:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:38:33 INFO tclean::::casa ########################################## 2026-03-05 01:38:33 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:38:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:38:33 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) 2026-03-05 01:38:33 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:38:33 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:38:33 2026****** 2026-03-05 01:38:33 INFO ImageFitter::fit+ 2026-03-05 01:38:33 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:38:33 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:38:33 INFO ImageFitter::fit+ --- region: 2026-03-05 01:38:33 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:38:33 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:38:33 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:38:33 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:38:33 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:38:33 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:38:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:38:33 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) 2026-03-05 01:38:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:38:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:38:33 INFO imstat::::casa ########################################## 2026-03-05 01:38:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:38:33 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 ) 2026-03-05 01:38:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:38:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:38:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:38:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:38:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:38:33 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) 2026-03-05 01:38:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:38:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:38:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:38:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:38:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:38:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:38:33 INFO imstat:::: Values --- 2026-03-05 01:38:33 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:38:33 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:38:33 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:38:33 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-03-05 01:38:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:38:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:38:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:38:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:38:33 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:38:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:38:33 INFO imstat:::: Statistics --- 2026-03-05 01:38:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:38:33 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:38:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:38:33 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:38:33 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-03-05 01:38:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-03-05 01:38:33 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-03-05 01:38:33 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-03-05 01:38:33 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-03-05 01:38:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:38:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:38:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:38:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:38:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:38:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:38:33 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 2026-03-05 01:38:33 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:38:33.311753 End time: 2026-03-05 01:38:33.330579 2026-03-05 01:38:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:38:33 INFO imstat::::casa ########################################## 2026-03-05 01:38:33 INFO phaseshift::::casa ########################################## 2026-03-05 01:38:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:38:33 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 19h53m50 02:40:24.0000' ) 2026-03-05 01:38:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:38:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:38:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:38:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:38:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:38:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:38:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:38:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:38:33 INFO MSTransformManager::open Select data 2026-03-05 01:38:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:38:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-03-05 01:38:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 02:40:24.0000' successfully parsed 2026-03-05 01:38:38 INFO phaseshift::::casa Shift phase center 2026-03-05 01:38:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:38:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:38:33.345099 End time: 2026-03-05 01:38:38.745722 2026-03-05 01:38:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:38:39 INFO phaseshift::::casa ########################################## 2026-03-05 01:38:39 INFO tclean::::casa ########################################## 2026-03-05 01:38:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:38:39 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 ) 2026-03-05 01:38:39 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:38:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:38:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:38:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:38:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:38:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:38:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:38:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:38:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:38:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:38:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:38:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:38:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:38:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021988 2026-03-05 01:38:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:38:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:38:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:38:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:38:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:38:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:38:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:38:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:38:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:38:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:38:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:38:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:38:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:38:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:38:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:38:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:38:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:38:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:38:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:38:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:38:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:38:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:38:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:38:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:38:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:38:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:38:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:38:48 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:38:48 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:38:48 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:38:49 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:38:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:38:50 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:38:38.776196 End time: 2026-03-05 01:38:49.816479 2026-03-05 01:38:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:38:50 INFO tclean::::casa ########################################## 2026-03-05 01:38:50 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:38:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:38:50 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) 2026-03-05 01:38:50 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:38:50 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:38:50 2026****** 2026-03-05 01:38:50 INFO ImageFitter::fit+ 2026-03-05 01:38:50 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:38:50 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:38:50 INFO ImageFitter::fit+ --- region: 2026-03-05 01:38:50 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:38:50 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:38:50 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:38:50 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:38:50 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:38:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:38:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:38:50 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) 2026-03-05 01:38:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:38:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:38:50 INFO imstat::::casa ########################################## 2026-03-05 01:38:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:38:50 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 ) 2026-03-05 01:38:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:38:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:38:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:38:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:38:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:38:50 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) 2026-03-05 01:38:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:38:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:38:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:38:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:38:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:38:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:38:50 INFO imstat:::: Values --- 2026-03-05 01:38:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:38:50 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:38:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:38:50 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-03-05 01:38:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:38:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:38:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:38:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:38:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:38:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:38:50 INFO imstat:::: Statistics --- 2026-03-05 01:38:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:38:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:38:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:38:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:38:50 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-03-05 01:38:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-03-05 01:38:50 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-03-05 01:38:50 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-03-05 01:38:50 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-03-05 01:38:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:38:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:38:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:38:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:38:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:38:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:38:50 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 2026-03-05 01:38:50 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:38:49.866519 End time: 2026-03-05 01:38:49.885216 2026-03-05 01:38:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:38:50 INFO imstat::::casa ########################################## 2026-03-05 01:38:50 INFO phaseshift::::casa ########################################## 2026-03-05 01:38:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:38:50 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.100000000deg' ) 2026-03-05 01:38:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:38:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:38:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:38:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:38:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:38:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:38:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:38:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:38:50 INFO MSTransformManager::open Select data 2026-03-05 01:38:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:38:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:38:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.100000000deg' successfully parsed 2026-03-05 01:38:53 INFO phaseshift::::casa Shift phase center 2026-03-05 01:38:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:38:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:38:49.898043 End time: 2026-03-05 01:38:53.357145 2026-03-05 01:38:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:38:53 INFO phaseshift::::casa ########################################## 2026-03-05 01:38:53 INFO tclean::::casa ########################################## 2026-03-05 01:38:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:38:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-03-05 01:38:53 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:38:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:38:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:38:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:38:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:38:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:38:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:38:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:38:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:38:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:38:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:38:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:38:55 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:38:55 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021139 2026-03-05 01:38:55 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:38:55 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:38:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:38:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:38:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:38:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:38:57 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:38:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:38:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:38:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:38:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:38:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:38:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:38:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:38:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:38:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:38:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:38:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:38:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:39:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:39:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:39:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:39:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:39:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:39:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:39:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:39:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:39:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:39:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:39:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:39:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:39:03 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:39:03 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:39:04 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:38:53.386692 End time: 2026-03-05 01:39:04.364548 2026-03-05 01:39:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:39:04 INFO tclean::::casa ########################################## 2026-03-05 01:39:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:39:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:39:04 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:39:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:39:04 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:39:04 2026****** 2026-03-05 01:39:04 INFO ImageFitter::fit+ 2026-03-05 01:39:04 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:39:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:39:04 INFO ImageFitter::fit+ --- region: 2026-03-05 01:39:04 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:39:04 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:39:04 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:39:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:39:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:39:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:39:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:39:04 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:39:04 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:39:04 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:39:04 INFO imstat::::casa ########################################## 2026-03-05 01:39:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:39:04 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:39:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:39:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:39:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:39:04 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:39:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:39:04 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:39:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:39:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:39:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:39:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:39:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:39:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:39:04 INFO imstat:::: Values --- 2026-03-05 01:39:04 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:39:04 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:39:04 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:39:04 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-03-05 01:39:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:39:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:39:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:39:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:39:04 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:39:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:39:04 INFO imstat:::: Statistics --- 2026-03-05 01:39:04 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:39:04 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:39:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:39:04 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:39:04 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-03-05 01:39:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-03-05 01:39:04 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-03-05 01:39:04 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-03-05 01:39:04 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-03-05 01:39:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:39:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:39:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:39:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:39:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:39:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:39:04 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 2026-03-05 01:39:04 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:39:04.421542 End time: 2026-03-05 01:39:04.444292 2026-03-05 01:39:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:39:04 INFO imstat::::casa ########################################## 2026-03-05 01:39:04 INFO phaseshift::::casa ########################################## 2026-03-05 01:39:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:39:04 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 0.699877030rad' ) 2026-03-05 01:39:04 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:39:04 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:39:04 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:39:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:39:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:39:04 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:39:04 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:39:04 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:39:04 INFO MSTransformManager::open Select data 2026-03-05 01:39:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:39:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:39:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 0.699877030rad' successfully parsed 2026-03-05 01:39:07 INFO phaseshift::::casa Shift phase center 2026-03-05 01:39:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:39:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:39:04.459501 End time: 2026-03-05 01:39:07.811395 2026-03-05 01:39:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:39:08 INFO phaseshift::::casa ########################################## 2026-03-05 01:39:08 INFO tclean::::casa ########################################## 2026-03-05 01:39:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:39:08 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 ) 2026-03-05 01:39:08 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:39:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:39:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:39:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:39:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:39:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:39:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:39:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:39:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:39:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:39:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:39:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:39:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:39:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021821 2026-03-05 01:39:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:39:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:39:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:39:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:39:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:39:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:39:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:39:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:39:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:39:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:39:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:39:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:39:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:39:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:39:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:39:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:39:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:39:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:39:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:39:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:39:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:39:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:39:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:39:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:39:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:39:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:39:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:39:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:39:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:39:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:39:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:39:17 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:39:19 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:39:07.840741 End time: 2026-03-05 01:39:18.501306 2026-03-05 01:39:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:39:19 INFO tclean::::casa ########################################## 2026-03-05 01:39:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:39:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:39:19 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) 2026-03-05 01:39:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:39:19 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:39:19 2026****** 2026-03-05 01:39:19 INFO ImageFitter::fit+ 2026-03-05 01:39:19 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:39:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:39:19 INFO ImageFitter::fit+ --- region: 2026-03-05 01:39:19 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:39:19 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:39:19 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:39:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:39:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:39:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:39:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:39:19 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) 2026-03-05 01:39:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:39:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:39:19 INFO imstat::::casa ########################################## 2026-03-05 01:39:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:39:19 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:39:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:39:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:39:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:39:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:39:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:39:19 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:39:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:39:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:39:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:39:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:39:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:39:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:39:19 INFO imstat:::: Values --- 2026-03-05 01:39:19 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:39:19 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:39:19 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:39:19 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-03-05 01:39:19 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:39:19 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:39:19 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:39:19 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-03-05 01:39:19 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:39:19 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:39:19 INFO imstat:::: Statistics --- 2026-03-05 01:39:19 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:39:19 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:39:19 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:39:19 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:39:19 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-03-05 01:39:19 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-03-05 01:39:19 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-03-05 01:39:19 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-03-05 01:39:19 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-03-05 01:39:19 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:39:19 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:39:19 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:39:19 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:39:19 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:39:19 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:39:19 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 2026-03-05 01:39:19 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:39:18.552919 End time: 2026-03-05 01:39:18.572274 2026-03-05 01:39:19 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:39:19 INFO imstat::::casa ########################################## 2026-03-05 01:39:19 INFO phaseshift::::casa ########################################## 2026-03-05 01:39:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:39:19 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40d06m00' ) 2026-03-05 01:39:19 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:39:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:39:19 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:39:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:39:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:39:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:39:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:39:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:39:19 INFO MSTransformManager::open Select data 2026-03-05 01:39:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:39:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:39:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40d06m00' successfully parsed 2026-03-05 01:39:21 INFO phaseshift::::casa Shift phase center 2026-03-05 01:39:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:39:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:39:18.586187 End time: 2026-03-05 01:39:22.110258 2026-03-05 01:39:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:39:22 INFO phaseshift::::casa ########################################## 2026-03-05 01:39:22 INFO tclean::::casa ########################################## 2026-03-05 01:39:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:39:22 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 ) 2026-03-05 01:39:22 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:39:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:39:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:39:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:39:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:39:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:39:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:39:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:39:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:39:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:39:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:39:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:39:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:39:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022538 2026-03-05 01:39:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:39:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:39:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:39:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:39:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:39:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:39:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:39:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:39:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:39:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:39:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:39:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:39:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:39:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:39:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:39:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:39:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:39:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:39:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:39:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:39:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:39:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:39:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:39:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:39:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:39:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:39:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:39:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:39:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:39:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:39:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:39:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:39:33 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:39:22.140653 End time: 2026-03-05 01:39:32.563189 2026-03-05 01:39:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:39:33 INFO tclean::::casa ########################################## 2026-03-05 01:39:33 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:39:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:39:33 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) 2026-03-05 01:39:33 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:39:33 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:39:33 2026****** 2026-03-05 01:39:33 INFO ImageFitter::fit+ 2026-03-05 01:39:33 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:39:33 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:39:33 INFO ImageFitter::fit+ --- region: 2026-03-05 01:39:33 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:39:33 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:39:33 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:39:33 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:39:33 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:39:33 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:39:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:39:33 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) 2026-03-05 01:39:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:39:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:39:33 INFO imstat::::casa ########################################## 2026-03-05 01:39:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:39:33 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 ) 2026-03-05 01:39:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:39:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:39:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:39:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:39:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:39:33 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) 2026-03-05 01:39:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:39:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:39:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:39:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:39:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:39:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:39:33 INFO imstat:::: Values --- 2026-03-05 01:39:33 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:39:33 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:39:33 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:39:33 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-03-05 01:39:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:39:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:39:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:39:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:39:33 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:39:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:39:33 INFO imstat:::: Statistics --- 2026-03-05 01:39:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:39:33 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:39:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:39:33 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:39:33 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-03-05 01:39:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-03-05 01:39:33 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-03-05 01:39:33 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-03-05 01:39:33 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-03-05 01:39:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:39:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:39:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:39:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:39:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:39:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:39:33 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 2026-03-05 01:39:33 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:39:32.630751 End time: 2026-03-05 01:39:32.651734 2026-03-05 01:39:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:39:33 INFO imstat::::casa ########################################## 2026-03-05 01:39:33 INFO phaseshift::::casa ########################################## 2026-03-05 01:39:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:39:33 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 19:53:50.0000 02:40:24.0000' ) 2026-03-05 01:39:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:39:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:39:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:39:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:39:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:39:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:39:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:39:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:39:33 INFO MSTransformManager::open Select data 2026-03-05 01:39:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:39:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-03-05 01:39:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 02:40:24.0000' successfully parsed 2026-03-05 01:39:35 INFO phaseshift::::casa Shift phase center 2026-03-05 01:39:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:39:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:39:32.667278 End time: 2026-03-05 01:39:36.118029 2026-03-05 01:39:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:39:36 INFO phaseshift::::casa ########################################## 2026-03-05 01:39:36 INFO tclean::::casa ########################################## 2026-03-05 01:39:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:39:36 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 ) 2026-03-05 01:39:36 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:39:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:39:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:39:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:39:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:39:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:39:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:39:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:39:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:39:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:39:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:39:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:39:37 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:39:37 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024586 2026-03-05 01:39:37 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:39:37 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:39:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:39:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:39:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:39:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:39:39 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:39:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:39:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:39:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:39:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:39:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:39:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:39:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:39:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:39:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:39:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:39:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:39:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:39:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:39:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:39:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:39:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:39:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:39:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:39:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:39:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:39:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:39:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:39:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:39:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:39:46 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:39:47 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:39:36.149102 End time: 2026-03-05 01:39:47.342651 2026-03-05 01:39:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:39:47 INFO tclean::::casa ########################################## 2026-03-05 01:39:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:39:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:39:47 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) 2026-03-05 01:39:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:39:47 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:39:47 2026****** 2026-03-05 01:39:47 INFO ImageFitter::fit+ 2026-03-05 01:39:47 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:39:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:39:47 INFO ImageFitter::fit+ --- region: 2026-03-05 01:39:47 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:39:47 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:39:47 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:39:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:39:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:39:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:39:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:39:47 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:39:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:39:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:39:47 INFO imstat::::casa ########################################## 2026-03-05 01:39:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:39:47 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 ) 2026-03-05 01:39:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:39:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:39:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:39:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:39:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:39:47 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) 2026-03-05 01:39:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:39:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:39:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:39:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:39:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:39:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:39:47 INFO imstat:::: Values --- 2026-03-05 01:39:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:39:47 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:39:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:39:47 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-03-05 01:39:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:39:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:39:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:39:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:39:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:39:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:39:47 INFO imstat:::: Statistics --- 2026-03-05 01:39:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:39:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:39:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:39:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:39:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-03-05 01:39:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-03-05 01:39:47 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-03-05 01:39:47 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-03-05 01:39:47 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-03-05 01:39:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:39:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:39:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:39:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:39:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:39:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:39:47 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 2026-03-05 01:39:47 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:39:47.399369 End time: 2026-03-05 01:39:47.428902 2026-03-05 01:39:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:39:47 INFO imstat::::casa ########################################## 2026-03-05 01:39:47 INFO phaseshift::::casa ########################################## 2026-03-05 01:39:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:39:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40.100000000deg' ) 2026-03-05 01:39:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:39:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:39:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:39:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:39:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:39:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:39:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:39:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:39:47 INFO MSTransformManager::open Select data 2026-03-05 01:39:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:39:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:39:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40.100000000deg' successfully parsed 2026-03-05 01:39:50 INFO phaseshift::::casa Shift phase center 2026-03-05 01:39:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:39:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:39:47.443288 End time: 2026-03-05 01:39:50.691790 2026-03-05 01:39:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:39:51 INFO phaseshift::::casa ########################################## 2026-03-05 01:39:51 INFO tclean::::casa ########################################## 2026-03-05 01:39:51 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:39:51 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 ) 2026-03-05 01:39:51 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:39:51 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:39:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:39:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:39:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:39:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:39:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:39:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:39:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:39:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:39:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:39:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:39:52 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:39:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022893 2026-03-05 01:39:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:39:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:39:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:39:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:39:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:39:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:39:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:39:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:39:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:39:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:39:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:39:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:39:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:39:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:39:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:39:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:39:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:39:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:39:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:39:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:39:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:39:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:39:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:39:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:39:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:39:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:39:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:39:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:39:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:39:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:39:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:40:00 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:40:00 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:40:02 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:39:50.721885 End time: 2026-03-05 01:40:01.927908 2026-03-05 01:40:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:40:02 INFO tclean::::casa ########################################## 2026-03-05 01:40:02 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:40:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:40:02 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) 2026-03-05 01:40:02 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:40:02 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:40:02 2026****** 2026-03-05 01:40:02 INFO ImageFitter::fit+ 2026-03-05 01:40:02 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:40:02 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:40:02 INFO ImageFitter::fit+ --- region: 2026-03-05 01:40:02 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:40:02 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:40:02 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:40:02 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:40:02 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:40:02 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:40:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:40:02 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) 2026-03-05 01:40:02 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:40:02 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:40:02 INFO imstat::::casa ########################################## 2026-03-05 01:40:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:40:02 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 ) 2026-03-05 01:40:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:40:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:40:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:40:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:40:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:40:02 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) 2026-03-05 01:40:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:40:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:40:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:40:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:40:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:40:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:40:02 INFO imstat:::: Values --- 2026-03-05 01:40:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:40:02 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:40:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:40:02 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-03-05 01:40:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:40:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:40:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:40:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:40:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:40:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:40:02 INFO imstat:::: Statistics --- 2026-03-05 01:40:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:40:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:40:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:40:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:40:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-03-05 01:40:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-03-05 01:40:02 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-03-05 01:40:02 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-03-05 01:40:02 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-03-05 01:40:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:40:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:40:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:40:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:40:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:40:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:40:02 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 2026-03-05 01:40:02 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:40:01.993963 End time: 2026-03-05 01:40:02.015524 2026-03-05 01:40:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:40:02 INFO imstat::::casa ########################################## 2026-03-05 01:40:02 INFO phaseshift::::casa ########################################## 2026-03-05 01:40:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:40:02 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 19:53:50.0000 0.699877030rad' ) 2026-03-05 01:40:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:40:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:40:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:40:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:40:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:40:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:40:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:40:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:40:02 INFO MSTransformManager::open Select data 2026-03-05 01:40:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:40:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:40:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 0.699877030rad' successfully parsed 2026-03-05 01:40:05 INFO phaseshift::::casa Shift phase center 2026-03-05 01:40:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:40:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:40:02.028886 End time: 2026-03-05 01:40:05.792243 2026-03-05 01:40:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:40:06 INFO phaseshift::::casa ########################################## 2026-03-05 01:40:06 INFO tclean::::casa ########################################## 2026-03-05 01:40:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:40:06 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 ) 2026-03-05 01:40:06 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:40:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:40:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:40:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:40:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:40:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:40:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:40:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:40:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:40:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:40:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:40:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:40:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:40:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021559 2026-03-05 01:40:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:40:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:40:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:40:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:40:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:40:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:40:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:40:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:40:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:40:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:40:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:40:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:40:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:40:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:40:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:40:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:40:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:40:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:40:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:40:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:40:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:40:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:40:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:40:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:40:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:40:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:40:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:40:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:40:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:40:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:40:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:40:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:40:17 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:40:05.823988 End time: 2026-03-05 01:40:16.948523 2026-03-05 01:40:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:40:17 INFO tclean::::casa ########################################## 2026-03-05 01:40:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:40:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:40:17 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:40:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:40:17 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:40:17 2026****** 2026-03-05 01:40:17 INFO ImageFitter::fit+ 2026-03-05 01:40:17 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:40:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:40:17 INFO ImageFitter::fit+ --- region: 2026-03-05 01:40:17 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:40:17 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:40:17 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:40:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:40:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:40:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:40:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:40:17 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:40:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:40:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:40:17 INFO imstat::::casa ########################################## 2026-03-05 01:40:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:40:17 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:40:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:40:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:40:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:40:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:40:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:40:17 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:40:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:40:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:40:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:40:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:40:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:40:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:40:17 INFO imstat:::: Values --- 2026-03-05 01:40:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:40:17 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:40:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:40:17 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-03-05 01:40:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:40:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:40:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:40:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-03-05 01:40:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:40:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:40:17 INFO imstat:::: Statistics --- 2026-03-05 01:40:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:40:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:40:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:40:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:40:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-03-05 01:40:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-03-05 01:40:17 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-03-05 01:40:17 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-03-05 01:40:17 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-03-05 01:40:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:40:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:40:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:40:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:40:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:40:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:40:17 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 2026-03-05 01:40:17 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:40:17.000981 End time: 2026-03-05 01:40:17.020084 2026-03-05 01:40:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:40:17 INFO imstat::::casa ########################################## 2026-03-05 01:40:17 INFO phaseshift::::casa ########################################## 2026-03-05 01:40:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:40:17 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40d06m00' ) 2026-03-05 01:40:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:40:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:40:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:40:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:40:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:40:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:40:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:40:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:40:17 INFO MSTransformManager::open Select data 2026-03-05 01:40:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:40:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:40:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40d06m00' successfully parsed 2026-03-05 01:40:19 INFO phaseshift::::casa Shift phase center 2026-03-05 01:40:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:40:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:40:17.033775 End time: 2026-03-05 01:40:20.309719 2026-03-05 01:40:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:40:20 INFO phaseshift::::casa ########################################## 2026-03-05 01:40:20 INFO tclean::::casa ########################################## 2026-03-05 01:40:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:40:20 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 ) 2026-03-05 01:40:20 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:40:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:40:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:40:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:40:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:40:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:40:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:40:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:40:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:40:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:40:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:40:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:40:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:40:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021597 2026-03-05 01:40:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:40:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:40:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:40:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:40:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:40:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:40:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:40:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:40:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:40:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:40:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:40:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:40:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:40:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:40:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:40:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:40:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:40:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:40:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:40:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:40:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:40:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:40:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:40:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:40:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:40:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:40:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:40:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:40:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:40:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:40:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:40:30 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:40:32 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:40:20.341649 End time: 2026-03-05 01:40:31.572304 2026-03-05 01:40:32 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:40:32 INFO tclean::::casa ########################################## 2026-03-05 01:40:32 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:40:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:40:32 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) 2026-03-05 01:40:32 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:40:32 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:40:32 2026****** 2026-03-05 01:40:32 INFO ImageFitter::fit+ 2026-03-05 01:40:32 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:40:32 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:40:32 INFO ImageFitter::fit+ --- region: 2026-03-05 01:40:32 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:40:32 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:40:32 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:40:32 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:40:32 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:40:32 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:40:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:40:32 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) 2026-03-05 01:40:32 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:40:32 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:40:32 INFO imstat::::casa ########################################## 2026-03-05 01:40:32 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:40:32 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 ) 2026-03-05 01:40:32 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:40:32 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:40:32 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:40:32 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:40:32 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:40:32 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) 2026-03-05 01:40:32 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:40:32 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:40:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:40:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:40:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:40:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:40:32 INFO imstat:::: Values --- 2026-03-05 01:40:32 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:40:32 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:40:32 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:40:32 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-03-05 01:40:32 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:40:32 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:40:32 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:40:32 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:40:32 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:40:32 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:40:32 INFO imstat:::: Statistics --- 2026-03-05 01:40:32 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:40:32 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:40:32 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:40:32 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:40:32 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-03-05 01:40:32 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-03-05 01:40:32 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-03-05 01:40:32 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-03-05 01:40:32 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-03-05 01:40:32 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:40:32 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:40:32 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:40:32 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:40:32 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:40:32 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:40:32 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 2026-03-05 01:40:32 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:40:31.624203 End time: 2026-03-05 01:40:31.643849 2026-03-05 01:40:32 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:40:32 INFO imstat::::casa ########################################## 2026-03-05 01:40:32 INFO phaseshift::::casa ########################################## 2026-03-05 01:40:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:40:32 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 02:40:24.0000' ) 2026-03-05 01:40:32 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:40:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:40:32 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:40:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:40:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:40:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:40:32 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:40:32 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:40:32 INFO MSTransformManager::open Select data 2026-03-05 01:40:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:40:34 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 ".". 2026-03-05 01:40:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 02:40:24.0000' successfully parsed 2026-03-05 01:40:34 INFO phaseshift::::casa Shift phase center 2026-03-05 01:40:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:40:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:40:31.656856 End time: 2026-03-05 01:40:35.309006 2026-03-05 01:40:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:40:35 INFO phaseshift::::casa ########################################## 2026-03-05 01:40:35 INFO tclean::::casa ########################################## 2026-03-05 01:40:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:40:35 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 ) 2026-03-05 01:40:35 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:40:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:40:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:40:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:40:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:40:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:40:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:40:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:40:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:40:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:40:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:40:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:40:37 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:40:37 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022492 2026-03-05 01:40:37 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:40:37 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:40:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:40:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:40:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:40:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:40:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:40:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:40:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:40:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:40:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:40:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:40:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:40:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:40:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:40:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:40:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:40:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:40:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:40:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:40:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:40:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:40:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:40:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:40:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:40:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:40:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:40:44 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:40:44 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:40:44 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:40:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:40:45 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:40:47 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:40:35.339918 End time: 2026-03-05 01:40:46.810767 2026-03-05 01:40:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:40:47 INFO tclean::::casa ########################################## 2026-03-05 01:40:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:40:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:40:47 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) 2026-03-05 01:40:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:40:47 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:40:47 2026****** 2026-03-05 01:40:47 INFO ImageFitter::fit+ 2026-03-05 01:40:47 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:40:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:40:47 INFO ImageFitter::fit+ --- region: 2026-03-05 01:40:47 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:40:47 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:40:47 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:40:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:40:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:40:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:40:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:40:47 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:40:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:40:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:40:47 INFO imstat::::casa ########################################## 2026-03-05 01:40:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:40:47 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 ) 2026-03-05 01:40:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:40:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:40:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:40:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:40:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:40:47 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) 2026-03-05 01:40:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:40:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:40:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:40:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:40:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:40:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:40:47 INFO imstat:::: Values --- 2026-03-05 01:40:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:40:47 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:40:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:40:47 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-03-05 01:40:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:40:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:40:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:40:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:40:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:40:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:40:47 INFO imstat:::: Statistics --- 2026-03-05 01:40:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:40:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:40:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:40:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:40:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-03-05 01:40:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-03-05 01:40:47 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-03-05 01:40:47 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-03-05 01:40:47 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-03-05 01:40:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:40:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:40:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:40:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:40:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:40:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:40:47 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 2026-03-05 01:40:47 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:40:46.866310 End time: 2026-03-05 01:40:46.896259 2026-03-05 01:40:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:40:47 INFO imstat::::casa ########################################## 2026-03-05 01:40:47 INFO phaseshift::::casa ########################################## 2026-03-05 01:40:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:40:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40.100000000deg' ) 2026-03-05 01:40:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:40:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:40:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:40:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:40:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:40:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:40:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:40:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:40:47 INFO MSTransformManager::open Select data 2026-03-05 01:40:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:40:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:40:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40.100000000deg' successfully parsed 2026-03-05 01:40:50 INFO phaseshift::::casa Shift phase center 2026-03-05 01:40:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:40:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:40:46.909185 End time: 2026-03-05 01:40:50.467856 2026-03-05 01:40:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:40:50 INFO phaseshift::::casa ########################################## 2026-03-05 01:40:50 INFO tclean::::casa ########################################## 2026-03-05 01:40:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:40:50 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 ) 2026-03-05 01:40:50 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:40:51 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:40:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:40:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:40:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:40:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:40:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:40:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:40:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:40:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:40:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:40:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:40:52 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:40:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.0226 2026-03-05 01:40:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:40:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:40:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:40:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:40:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:40:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:40:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:40:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:40:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:40:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:40:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:40:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:40:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:40:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:40:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:40:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:40:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:40:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:40:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:40:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:40:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:40:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:40:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:40:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:40:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:40:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:40:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:40:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:40:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:40:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:40:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:41:00 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:41:00 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:41:01 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:40:50.498899 End time: 2026-03-05 01:41:01.108451 2026-03-05 01:41:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:41:01 INFO tclean::::casa ########################################## 2026-03-05 01:41:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:41:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:41:01 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) 2026-03-05 01:41:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:41:01 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:41:01 2026****** 2026-03-05 01:41:01 INFO ImageFitter::fit+ 2026-03-05 01:41:01 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:41:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:41:01 INFO ImageFitter::fit+ --- region: 2026-03-05 01:41:01 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:41:01 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:41:01 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:41:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:41:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:41:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:41:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:41:01 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) 2026-03-05 01:41:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:41:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:41:01 INFO imstat::::casa ########################################## 2026-03-05 01:41:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:41:01 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 ) 2026-03-05 01:41:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:41:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:41:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:41:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:41:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:41:01 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) 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:41:01 INFO imstat:::: Values --- 2026-03-05 01:41:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:41:01 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:41:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:41:01 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-03-05 01:41:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:41:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:41:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:41:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:41:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:41:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:41:01 INFO imstat:::: Statistics --- 2026-03-05 01:41:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:41:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:41:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:41:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:41:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-03-05 01:41:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-03-05 01:41:01 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-03-05 01:41:01 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-03-05 01:41:01 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:41:01 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777580e-05 4.999996e+00 2026-03-05 01:41:01 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:41:01.174644 End time: 2026-03-05 01:41:01.200283 2026-03-05 01:41:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:41:01 INFO imstat::::casa ########################################## 2026-03-05 01:41:01 INFO phaseshift::::casa ########################################## 2026-03-05 01:41:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:41:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 0.699877030rad' ) 2026-03-05 01:41:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:41:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:41:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:41:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:41:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:41:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:41:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:41:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:41:01 INFO MSTransformManager::open Select data 2026-03-05 01:41:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:41:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:41:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 0.699877030rad' successfully parsed 2026-03-05 01:41:04 INFO phaseshift::::casa Shift phase center 2026-03-05 01:41:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:41:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:41:01.214308 End time: 2026-03-05 01:41:04.872654 2026-03-05 01:41:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:41:05 INFO phaseshift::::casa ########################################## 2026-03-05 01:41:05 INFO tclean::::casa ########################################## 2026-03-05 01:41:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:41:05 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 ) 2026-03-05 01:41:05 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:41:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:41:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:41:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:41:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:41:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:41:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:41:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:41:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:41:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:41:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:41:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:41:06 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:41:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022339 2026-03-05 01:41:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:41:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:41:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:41:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:41:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:41:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:41:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:41:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:41:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:41:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:41:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:41:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:41:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:41:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:41:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:41:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:41:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:41:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:41:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:41:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:41:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:41:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:41:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:41:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:41:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:41:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:41:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:41:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:41:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:41:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:41:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:41:14 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:41:16 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:41:04.902424 End time: 2026-03-05 01:41:15.773325 2026-03-05 01:41:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:41:16 INFO tclean::::casa ########################################## 2026-03-05 01:41:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:41:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:41:16 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:41:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:41:16 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:41:16 2026****** 2026-03-05 01:41:16 INFO ImageFitter::fit+ 2026-03-05 01:41:16 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:41:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:41:16 INFO ImageFitter::fit+ --- region: 2026-03-05 01:41:16 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:41:16 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:41:16 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:41:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:41:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:41:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:41:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:41:16 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:41:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:41:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:41:16 INFO imstat::::casa ########################################## 2026-03-05 01:41:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:41:16 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:41:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:41:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:41:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:41:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:41:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:41:16 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:41:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:41:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:41:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:41:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:41:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:41:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:41:16 INFO imstat:::: Values --- 2026-03-05 01:41:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:41:16 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:41:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:41:16 INFO imstat:::: -- minimum value [min]: -7.77738e-05 Jy/beam 2026-03-05 01:41:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:41:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:41:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:41:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:41:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:41:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:41:16 INFO imstat:::: Statistics --- 2026-03-05 01:41:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:41:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:41:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:41:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:41:16 INFO imstat:::: -- Median of the pixel values [median]: -1.86662e-05 Jy/beam 2026-03-05 01:41:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73577e-05 Jy/beam 2026-03-05 01:41:16 INFO imstat:::: -- IQR [quartile]: 3.56242e-05 Jy/beam 2026-03-05 01:41:16 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-03-05 01:41:16 INFO imstat:::: -- Third quartile [q3]: 1.11673e-06 Jy/beam 2026-03-05 01:41:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:41:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:41:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:41:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:41:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:41:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:41:16 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 2026-03-05 01:41:16 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:41:15.829806 End time: 2026-03-05 01:41:15.851226 2026-03-05 01:41:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:41:16 INFO imstat::::casa ########################################## 2026-03-05 01:41:16 INFO phaseshift::::casa ########################################## 2026-03-05 01:41:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:41:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40d06m00' ) 2026-03-05 01:41:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:41:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:41:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:41:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:41:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:41:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:41:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:41:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:41:16 INFO MSTransformManager::open Select data 2026-03-05 01:41:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:41:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:41:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40d06m00' successfully parsed 2026-03-05 01:41:19 INFO phaseshift::::casa Shift phase center 2026-03-05 01:41:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:41:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:41:15.864812 End time: 2026-03-05 01:41:19.533762 2026-03-05 01:41:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:41:20 INFO phaseshift::::casa ########################################## 2026-03-05 01:41:20 INFO tclean::::casa ########################################## 2026-03-05 01:41:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:41:20 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 ) 2026-03-05 01:41:20 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:41:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:41:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:41:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:41:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:41:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:41:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:41:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:41:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:41:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:41:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:41:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:41:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:41:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023522 2026-03-05 01:41:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:41:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:41:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:41:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:41:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:41:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:41:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:41:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:41:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:41:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:41:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:41:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:41:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:41:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:41:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:41:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:41:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:41:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:41:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:41:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:41:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:41:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:41:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:41:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:41:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:41:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:41:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:41:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:41:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:41:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:41:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:41:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:41:31 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:41:19.563176 End time: 2026-03-05 01:41:30.507712 2026-03-05 01:41:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:41:31 INFO tclean::::casa ########################################## 2026-03-05 01:41:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:41:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:41:31 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) 2026-03-05 01:41:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:41:31 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:41:31 2026****** 2026-03-05 01:41:31 INFO ImageFitter::fit+ 2026-03-05 01:41:31 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:41:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:41:31 INFO ImageFitter::fit+ --- region: 2026-03-05 01:41:31 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:41:31 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:41:31 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:41:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:41:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:41:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:41:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:41:31 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) 2026-03-05 01:41:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:41:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:41:31 INFO imstat::::casa ########################################## 2026-03-05 01:41:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:41:31 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 ) 2026-03-05 01:41:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:41:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:41:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:41:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:41:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:41:31 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) 2026-03-05 01:41:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:41:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:41:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:41:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:41:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:41:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:41:31 INFO imstat:::: Values --- 2026-03-05 01:41:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:41:31 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:41:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:41:31 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-03-05 01:41:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:41:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:41:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:41:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-03-05 01:41:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:41:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:41:31 INFO imstat:::: Statistics --- 2026-03-05 01:41:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:41:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:41:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:41:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:41:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-03-05 01:41:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-03-05 01:41:31 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-03-05 01:41:31 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-03-05 01:41:31 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-03-05 01:41:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:41:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:41:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:41:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:41:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:41:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:41:31 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 2026-03-05 01:41:31 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:41:30.569088 End time: 2026-03-05 01:41:30.588321 2026-03-05 01:41:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:41:31 INFO imstat::::casa ########################################## 2026-03-05 01:41:31 INFO phaseshift::::casa ########################################## 2026-03-05 01:41:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:41:31 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 02:40:24.0000' ) 2026-03-05 01:41:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:41:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:41:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:41:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:41:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:41:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:41:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:41:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:41:31 INFO MSTransformManager::open Select data 2026-03-05 01:41:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:41:34 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 ".". 2026-03-05 01:41:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 02:40:24.0000' successfully parsed 2026-03-05 01:41:34 INFO phaseshift::::casa Shift phase center 2026-03-05 01:41:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:41:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:41:30.601175 End time: 2026-03-05 01:41:34.535722 2026-03-05 01:41:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:41:35 INFO phaseshift::::casa ########################################## 2026-03-05 01:41:35 INFO tclean::::casa ########################################## 2026-03-05 01:41:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:41:35 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 ) 2026-03-05 01:41:35 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:41:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:41:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:41:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:41:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:41:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:41:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:41:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:41:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:41:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:41:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:41:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:41:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:41:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023102 2026-03-05 01:41:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:41:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:41:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:41:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:41:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:41:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:41:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:41:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:41:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:41:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:41:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:41:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:41:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:41:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:41:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:41:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:41:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:41:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:41:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:41:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:41:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:41:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:41:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:41:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:41:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:41:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:41:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:41:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:41:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:41:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:41:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:41:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:41:46 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:41:34.568241 End time: 2026-03-05 01:41:45.642097 2026-03-05 01:41:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:41:46 INFO tclean::::casa ########################################## 2026-03-05 01:41:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:41:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:41:46 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) 2026-03-05 01:41:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:41:46 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:41:46 2026****** 2026-03-05 01:41:46 INFO ImageFitter::fit+ 2026-03-05 01:41:46 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:41:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:41:46 INFO ImageFitter::fit+ --- region: 2026-03-05 01:41:46 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:41:46 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:41:46 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:41:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:41:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:41:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:41:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:41:46 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) 2026-03-05 01:41:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:41:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:41:46 INFO imstat::::casa ########################################## 2026-03-05 01:41:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:41:46 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 ) 2026-03-05 01:41:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:41:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:41:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:41:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:41:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:41:46 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) 2026-03-05 01:41:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:41:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:41:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:41:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:41:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:41:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:41:46 INFO imstat:::: Values --- 2026-03-05 01:41:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:41:46 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:41:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:41:46 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-03-05 01:41:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:41:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:41:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:41:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-03-05 01:41:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:41:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:41:46 INFO imstat:::: Statistics --- 2026-03-05 01:41:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:41:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:41:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:41:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:41:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-03-05 01:41:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-03-05 01:41:46 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-03-05 01:41:46 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-03-05 01:41:46 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-03-05 01:41:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:41:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:41:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:41:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:41:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:41:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:41:46 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 2026-03-05 01:41:46 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:41:45.696927 End time: 2026-03-05 01:41:45.716405 2026-03-05 01:41:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:41:46 INFO imstat::::casa ########################################## 2026-03-05 01:41:46 INFO phaseshift::::casa ########################################## 2026-03-05 01:41:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:41:46 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 5.209080597rad 40.100000000deg' ) 2026-03-05 01:41:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:41:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:41:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:41:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:41:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:41:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:41:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:41:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:41:46 INFO MSTransformManager::open Select data 2026-03-05 01:41:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:41:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:41:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40.100000000deg' successfully parsed 2026-03-05 01:41:48 INFO phaseshift::::casa Shift phase center 2026-03-05 01:41:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:41:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:41:45.729443 End time: 2026-03-05 01:41:49.149368 2026-03-05 01:41:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:41:49 INFO phaseshift::::casa ########################################## 2026-03-05 01:41:49 INFO tclean::::casa ########################################## 2026-03-05 01:41:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:41:49 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 ) 2026-03-05 01:41:49 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:41:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:41:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:41:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:41:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:41:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:41:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:41:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:41:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:41:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:41:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:41:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:41:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:41:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022297 2026-03-05 01:41:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:41:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:41:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:41:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:41:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:41:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:41:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:41:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:41:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:41:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:41:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:41:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:41:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:41:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:41:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:41:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:41:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:41:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:41:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:41:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:41:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:41:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:41:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:41:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:41:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:41:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:41:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:41:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:41:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:41:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:41:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:41:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:41:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:42:00 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:41:49.180154 End time: 2026-03-05 01:42:00.044703 2026-03-05 01:42:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:42:00 INFO tclean::::casa ########################################## 2026-03-05 01:42:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:42:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:42:00 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) 2026-03-05 01:42:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:42:00 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:42:00 2026****** 2026-03-05 01:42:00 INFO ImageFitter::fit+ 2026-03-05 01:42:00 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:42:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:42:00 INFO ImageFitter::fit+ --- region: 2026-03-05 01:42:00 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:42:00 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:42:00 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:42:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:42:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:42:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:42:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:42:00 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) 2026-03-05 01:42:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:42:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:42:00 INFO imstat::::casa ########################################## 2026-03-05 01:42:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:42:00 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 ) 2026-03-05 01:42:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:42:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:42:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:42:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:42:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:42:00 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) 2026-03-05 01:42:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:42:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:42:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:42:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:42:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:42:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:42:00 INFO imstat:::: Values --- 2026-03-05 01:42:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:42:00 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:42:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:42:00 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-03-05 01:42:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:42:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:42:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:42:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-03-05 01:42:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:42:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:42:00 INFO imstat:::: Statistics --- 2026-03-05 01:42:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:42:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:42:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:42:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:42:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-03-05 01:42:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-03-05 01:42:00 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-03-05 01:42:00 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-03-05 01:42:00 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-03-05 01:42:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:42:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:42:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:42:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:42:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:42:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:42:00 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 2026-03-05 01:42:00 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:42:00.109202 End time: 2026-03-05 01:42:00.128945 2026-03-05 01:42:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:42:00 INFO imstat::::casa ########################################## 2026-03-05 01:42:00 INFO phaseshift::::casa ########################################## 2026-03-05 01:42:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:42:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 0.699877030rad' ) 2026-03-05 01:42:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:42:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:42:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:42:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:42:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:42:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:42:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:42:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:42:00 INFO MSTransformManager::open Select data 2026-03-05 01:42:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:42:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:42:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 0.699877030rad' successfully parsed 2026-03-05 01:42:03 INFO phaseshift::::casa Shift phase center 2026-03-05 01:42:04 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:42:04 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:42:00.142357 End time: 2026-03-05 01:42:03.898290 2026-03-05 01:42:04 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:42:04 INFO phaseshift::::casa ########################################## 2026-03-05 01:42:04 INFO tclean::::casa ########################################## 2026-03-05 01:42:04 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:42:04 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 ) 2026-03-05 01:42:04 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:42:04 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:42:04 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:42:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:42:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:42:04 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:42:04 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:42:04 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:42:04 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:42:04 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:42:04 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:42:04 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:42:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:42:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.0221 2026-03-05 01:42:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:42:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:42:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:42:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:42:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:42:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:42:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:42:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:42:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:42:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:42:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:42:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:42:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:42:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:42:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:42:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:42:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:42:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:42:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:42:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:42:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:42:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:42:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:42:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:42:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:42:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:42:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:42:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:42:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:42:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:42:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:42:14 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:42:15 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:42:03.929624 End time: 2026-03-05 01:42:14.654910 2026-03-05 01:42:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:42:15 INFO tclean::::casa ########################################## 2026-03-05 01:42:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:42:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:42:15 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:42:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:42:15 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:42:15 2026****** 2026-03-05 01:42:15 INFO ImageFitter::fit+ 2026-03-05 01:42:15 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:42:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:42:15 INFO ImageFitter::fit+ --- region: 2026-03-05 01:42:15 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:42:15 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:42:15 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:42:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:42:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:42:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:42:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:42:15 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:42:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:42:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:42:15 INFO imstat::::casa ########################################## 2026-03-05 01:42:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:42:15 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:42:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:42:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:42:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:42:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:42:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:42:15 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:42:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:42:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:42:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:42:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:42:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:42:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:42:15 INFO imstat:::: Values --- 2026-03-05 01:42:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:42:15 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:42:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:42:15 INFO imstat:::: -- minimum value [min]: -7.77793e-05 Jy/beam 2026-03-05 01:42:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:42:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:42:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:42:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-03-05 01:42:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:42:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:42:15 INFO imstat:::: Statistics --- 2026-03-05 01:42:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:42:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:42:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:42:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:42:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-03-05 01:42:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73592e-05 Jy/beam 2026-03-05 01:42:15 INFO imstat:::: -- IQR [quartile]: 3.55982e-05 Jy/beam 2026-03-05 01:42:15 INFO imstat:::: -- First quartile [q1]: -3.45035e-05 Jy/beam 2026-03-05 01:42:15 INFO imstat:::: -- Third quartile [q3]: 1.09469e-06 Jy/beam 2026-03-05 01:42:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:42:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:42:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:42:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:42:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:42:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:42:15 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 2026-03-05 01:42:15 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:42:14.706747 End time: 2026-03-05 01:42:14.726485 2026-03-05 01:42:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:42:15 INFO imstat::::casa ########################################## 2026-03-05 01:42:15 INFO phaseshift::::casa ########################################## 2026-03-05 01:42:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:42:15 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40d06m0.0019' ) 2026-03-05 01:42:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:42:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:42:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:42:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:42:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:42:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:42:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:42:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:42:15 INFO MSTransformManager::open Select data 2026-03-05 01:42:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:42:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:42:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40d06m0.0019' successfully parsed 2026-03-05 01:42:18 INFO phaseshift::::casa Shift phase center 2026-03-05 01:42:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:42:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:42:14.740240 End time: 2026-03-05 01:42:18.482242 2026-03-05 01:42:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:42:18 INFO phaseshift::::casa ########################################## 2026-03-05 01:42:19 INFO tclean::::casa ########################################## 2026-03-05 01:42:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:42:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-03-05 01:42:19 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:42:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:42:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:42:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:42:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:42:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:42:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:42:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:42:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:42:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:42:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:42:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:42:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:42:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022307 2026-03-05 01:42:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:42:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:42:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:42:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:42:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:42:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:42:22 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:42:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:42:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:42:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:42:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:42:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:42:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:42:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:42:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:42:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:42:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:42:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:42:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:42:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:42:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:42:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:42:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:42:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:42:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:42:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:42:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:42:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:42:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:42:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:42:28 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:42:28 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:42:30 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:42:18.514427 End time: 2026-03-05 01:42:29.619216 2026-03-05 01:42:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:42:30 INFO tclean::::casa ########################################## 2026-03-05 01:42:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:42:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:42:30 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) 2026-03-05 01:42:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:42:30 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:42:30 2026****** 2026-03-05 01:42:30 INFO ImageFitter::fit+ 2026-03-05 01:42:30 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:42:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:42:30 INFO ImageFitter::fit+ --- region: 2026-03-05 01:42:30 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:42:30 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:42:30 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:42:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:42:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:42:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:42:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:42:30 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) 2026-03-05 01:42:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:42:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:42:30 INFO imstat::::casa ########################################## 2026-03-05 01:42:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:42:30 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 ) 2026-03-05 01:42:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:42:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:42:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:42:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:42:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:42:30 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) 2026-03-05 01:42:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:42:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:42:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:42:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:42:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:42:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:42:30 INFO imstat:::: Values --- 2026-03-05 01:42:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:42:30 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:42:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:42:30 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-03-05 01:42:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:42:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:42:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:42:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-03-05 01:42:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:42:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:42:30 INFO imstat:::: Statistics --- 2026-03-05 01:42:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:42:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:42:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:42:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:42:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-03-05 01:42:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-03-05 01:42:30 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-03-05 01:42:30 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-03-05 01:42:30 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-03-05 01:42:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:42:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:42:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:42:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:42:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:42:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:42:30 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 2026-03-05 01:42:30 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:42:29.670794 End time: 2026-03-05 01:42:29.690789 2026-03-05 01:42:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:42:30 INFO imstat::::casa ########################################## 2026-03-05 01:42:30 INFO phaseshift::::casa ########################################## 2026-03-05 01:42:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:42:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 02:40:24.0001' ) 2026-03-05 01:42:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:42:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:42:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:42:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:42:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:42:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:42:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:42:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:42:30 INFO MSTransformManager::open Select data 2026-03-05 01:42:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:42:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-03-05 01:42:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 02:40:24.0001' successfully parsed 2026-03-05 01:42:32 INFO phaseshift::::casa Shift phase center 2026-03-05 01:42:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:42:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:42:29.704817 End time: 2026-03-05 01:42:32.941129 2026-03-05 01:42:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:42:33 INFO phaseshift::::casa ########################################## 2026-03-05 01:42:33 INFO tclean::::casa ########################################## 2026-03-05 01:42:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:42:33 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 ) 2026-03-05 01:42:33 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:42:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:42:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:42:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:42:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:42:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:42:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:42:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:42:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:42:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:42:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:42:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:42:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:42:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020817 2026-03-05 01:42:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:42:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:42:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:42:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:42:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:42:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:42:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:42:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:42:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:42:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:42:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:42:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:42:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:42:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:42:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:42:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:42:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:42:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:42:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:42:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:42:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:42:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:42:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:42:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:42:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:42:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:42:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:42:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:42:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:42:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:42:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:42:42 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:42:43 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:42:32.971409 End time: 2026-03-05 01:42:43.275099 2026-03-05 01:42:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:42:43 INFO tclean::::casa ########################################## 2026-03-05 01:42:43 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:42:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:42:43 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) 2026-03-05 01:42:43 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:42:43 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:42:43 2026****** 2026-03-05 01:42:43 INFO ImageFitter::fit+ 2026-03-05 01:42:43 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:42:43 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:42:43 INFO ImageFitter::fit+ --- region: 2026-03-05 01:42:43 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:42:43 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:42:43 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:42:43 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:42:43 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:42:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:42:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:42:43 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) 2026-03-05 01:42:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:42:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:42:43 INFO imstat::::casa ########################################## 2026-03-05 01:42:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:42:43 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 ) 2026-03-05 01:42:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:42:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:42:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:42:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:42:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:42:43 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) 2026-03-05 01:42:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:42:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:42:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:42:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:42:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:42:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:42:43 INFO imstat:::: Values --- 2026-03-05 01:42:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:42:43 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:42:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:42:43 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-03-05 01:42:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:42:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:42:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:42:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-03-05 01:42:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:42:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:42:43 INFO imstat:::: Statistics --- 2026-03-05 01:42:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:42:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:42:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:42:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:42:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-03-05 01:42:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-03-05 01:42:43 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-03-05 01:42:43 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-03-05 01:42:43 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-03-05 01:42:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:42:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:42:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:42:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:42:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:42:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:42:43 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 2026-03-05 01:42:43 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:42:43.337617 End time: 2026-03-05 01:42:43.370704 2026-03-05 01:42:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:42:43 INFO imstat::::casa ########################################## 2026-03-05 01:42:43 INFO phaseshift::::casa ########################################## 2026-03-05 01:42:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:42:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40.100000528deg' ) 2026-03-05 01:42:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:42:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:42:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:42:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:42:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:42:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:42:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:42:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:42:43 INFO MSTransformManager::open Select data 2026-03-05 01:42:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:42:46 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:42:46 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40.100000528deg' successfully parsed 2026-03-05 01:42:46 INFO phaseshift::::casa Shift phase center 2026-03-05 01:42:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:42:47 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:42:43.385561 End time: 2026-03-05 01:42:47.140046 2026-03-05 01:42:47 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:42:47 INFO phaseshift::::casa ########################################## 2026-03-05 01:42:47 INFO tclean::::casa ########################################## 2026-03-05 01:42:47 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:42:47 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-03-05 01:42:47 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:42:47 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:42:47 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:42:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:42:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:42:47 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:42:47 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:42:47 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:42:47 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:42:47 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:42:47 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:42:47 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:42:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:42:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021669 2026-03-05 01:42:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:42:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:42:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:42:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:42:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:42:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:42:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:42:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:42:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:42:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:42:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:42:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:42:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:42:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:42:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:42:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:42:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:42:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:42:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:42:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:42:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:42:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:42:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:42:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:42:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:42:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:42:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:42:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:42:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:42:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:42:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:42:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:42:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:43:00 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:42:47.170700 End time: 2026-03-05 01:43:00.321944 2026-03-05 01:43:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:43:00 INFO tclean::::casa ########################################## 2026-03-05 01:43:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:43:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:43:00 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) 2026-03-05 01:43:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:43:00 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:43:00 2026****** 2026-03-05 01:43:00 INFO ImageFitter::fit+ 2026-03-05 01:43:00 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:43:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:43:00 INFO ImageFitter::fit+ --- region: 2026-03-05 01:43:00 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:43:00 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:43:00 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:43:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:43:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:43:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:43:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:43:00 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) 2026-03-05 01:43:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:43:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:43:00 INFO imstat::::casa ########################################## 2026-03-05 01:43:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:43:00 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 ) 2026-03-05 01:43:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:43:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:43:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:43:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:43:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:43:00 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) 2026-03-05 01:43:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:43:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:43:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:43:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:43:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:43:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:43:00 INFO imstat:::: Values --- 2026-03-05 01:43:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:43:00 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:43:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:43:00 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-03-05 01:43:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:43:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:43:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:43:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-03-05 01:43:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:43:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:43:00 INFO imstat:::: Statistics --- 2026-03-05 01:43:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:43:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:43:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:43:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:43:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-03-05 01:43:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-03-05 01:43:00 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-03-05 01:43:00 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-03-05 01:43:00 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-03-05 01:43:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:43:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:43:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:43:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:43:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:43:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:43:00 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 2026-03-05 01:43:00 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:43:00.376646 End time: 2026-03-05 01:43:00.408058 2026-03-05 01:43:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:43:00 INFO imstat::::casa ########################################## 2026-03-05 01:43:00 INFO phaseshift::::casa ########################################## 2026-03-05 01:43:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:43:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 0.699877039rad' ) 2026-03-05 01:43:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:43:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:43:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:43:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:43:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:43:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:43:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:43:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:43:00 INFO MSTransformManager::open Select data 2026-03-05 01:43:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:43:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:43:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 0.699877039rad' successfully parsed 2026-03-05 01:43:03 INFO phaseshift::::casa Shift phase center 2026-03-05 01:43:04 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:43:04 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:43:00.422916 End time: 2026-03-05 01:43:03.950630 2026-03-05 01:43:04 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:43:04 INFO phaseshift::::casa ########################################## 2026-03-05 01:43:04 INFO tclean::::casa ########################################## 2026-03-05 01:43:04 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:43:04 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 ) 2026-03-05 01:43:04 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:43:04 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:43:04 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:43:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:43:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:43:04 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:43:04 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:43:04 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:43:04 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:43:04 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:43:04 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:43:04 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:43:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:43:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022503 2026-03-05 01:43:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:43:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:43:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:43:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:43:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:43:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:43:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:43:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:43:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:43:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:43:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:43:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:43:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:43:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:43:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:43:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:43:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:43:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:43:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:43:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:43:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:43:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:43:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:43:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:43:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:43:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:43:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:43:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:43:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:43:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:43:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:43:14 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:43:16 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:43:03.983309 End time: 2026-03-05 01:43:15.825783 2026-03-05 01:43:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:43:16 INFO tclean::::casa ########################################## 2026-03-05 01:43:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:43:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:43:16 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:43:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:43:16 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:43:16 2026****** 2026-03-05 01:43:16 INFO ImageFitter::fit+ 2026-03-05 01:43:16 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:43:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:43:16 INFO ImageFitter::fit+ --- region: 2026-03-05 01:43:16 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:43:16 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:43:16 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:43:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:43:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:43:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:43:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:43:16 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:43:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:43:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:43:16 INFO imstat::::casa ########################################## 2026-03-05 01:43:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:43:16 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:43:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:43:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:43:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:43:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:43:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:43:16 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:43:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:43:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:43:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:43:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:43:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:43:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:43:16 INFO imstat:::: Values --- 2026-03-05 01:43:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:43:16 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:43:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:43:16 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-03-05 01:43:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:43:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:43:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:43:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-03-05 01:43:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:43:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:43:16 INFO imstat:::: Statistics --- 2026-03-05 01:43:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:43:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:43:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:43:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:43:16 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-03-05 01:43:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-03-05 01:43:16 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-03-05 01:43:16 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-03-05 01:43:16 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-03-05 01:43:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:43:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:43:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:43:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:43:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:43:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:43:16 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 2026-03-05 01:43:16 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:43:15.884323 End time: 2026-03-05 01:43:15.905873 2026-03-05 01:43:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:43:16 INFO imstat::::casa ########################################## 2026-03-05 01:43:16 INFO phaseshift::::casa ########################################## 2026-03-05 01:43:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:43:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40d06m0.0019' ) 2026-03-05 01:43:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:43:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:43:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:43:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:43:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:43:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:43:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:43:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:43:16 INFO MSTransformManager::open Select data 2026-03-05 01:43:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:43:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:43:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40d06m0.0019' successfully parsed 2026-03-05 01:43:19 INFO phaseshift::::casa Shift phase center 2026-03-05 01:43:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:43:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:43:15.919753 End time: 2026-03-05 01:43:19.720122 2026-03-05 01:43:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:43:20 INFO phaseshift::::casa ########################################## 2026-03-05 01:43:20 INFO tclean::::casa ########################################## 2026-03-05 01:43:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:43:20 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 ) 2026-03-05 01:43:20 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:43:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:43:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:43:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:43:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:43:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:43:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:43:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:43:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:43:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:43:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:43:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:43:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:43:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021608 2026-03-05 01:43:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:43:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:43:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:43:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:43:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:43:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:43:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:43:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:43:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:43:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:43:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:43:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:43:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:43:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:43:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:43:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:43:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:43:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:43:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:43:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:43:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:43:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:43:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:43:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:43:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:43:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:43:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:43:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:43:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:43:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:43:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:43:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:43:32 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:43:19.751542 End time: 2026-03-05 01:43:32.312392 2026-03-05 01:43:32 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:43:32 INFO tclean::::casa ########################################## 2026-03-05 01:43:32 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:43:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:43:32 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) 2026-03-05 01:43:32 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:43:32 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:43:32 2026****** 2026-03-05 01:43:32 INFO ImageFitter::fit+ 2026-03-05 01:43:32 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:43:32 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:43:32 INFO ImageFitter::fit+ --- region: 2026-03-05 01:43:32 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:43:32 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:43:32 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:43:32 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:43:32 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:43:32 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:43:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:43:32 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) 2026-03-05 01:43:32 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:43:32 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:43:32 INFO imstat::::casa ########################################## 2026-03-05 01:43:32 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:43:32 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 ) 2026-03-05 01:43:32 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:43:32 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:43:32 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:43:32 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:43:32 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:43:32 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) 2026-03-05 01:43:32 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:43:32 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:43:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:43:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:43:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:43:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:43:32 INFO imstat:::: Values --- 2026-03-05 01:43:32 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:43:32 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:43:32 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:43:32 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-03-05 01:43:32 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:43:32 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:43:32 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:43:32 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-03-05 01:43:32 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:43:32 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:43:32 INFO imstat:::: Statistics --- 2026-03-05 01:43:32 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:43:32 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:43:32 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:43:32 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:43:32 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-03-05 01:43:32 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-03-05 01:43:32 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-03-05 01:43:32 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-03-05 01:43:32 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-03-05 01:43:32 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:43:32 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:43:32 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:43:32 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:43:32 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:43:32 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:43:32 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 2026-03-05 01:43:32 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:43:32.369555 End time: 2026-03-05 01:43:32.405164 2026-03-05 01:43:32 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:43:32 INFO imstat::::casa ########################################## 2026-03-05 01:43:32 INFO phaseshift::::casa ########################################## 2026-03-05 01:43:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:43:32 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 02:40:24.0001' ) 2026-03-05 01:43:32 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:43:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:43:32 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:43:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:43:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:43:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:43:32 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:43:32 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:43:32 INFO MSTransformManager::open Select data 2026-03-05 01:43:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:43:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-03-05 01:43:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 02:40:24.0001' successfully parsed 2026-03-05 01:43:35 INFO phaseshift::::casa Shift phase center 2026-03-05 01:43:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:43:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:43:32.420789 End time: 2026-03-05 01:43:36.251412 2026-03-05 01:43:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:43:36 INFO phaseshift::::casa ########################################## 2026-03-05 01:43:36 INFO tclean::::casa ########################################## 2026-03-05 01:43:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:43:36 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 ) 2026-03-05 01:43:36 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:43:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:43:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:43:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:43:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:43:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:43:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:43:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:43:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:43:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:43:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:43:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:43:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:43:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021376 2026-03-05 01:43:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:43:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:43:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:43:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:43:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:43:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:43:39 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:43:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:43:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:43:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:43:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:43:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:43:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:43:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:43:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:43:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:43:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:43:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:43:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:43:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:43:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:43:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:43:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:43:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:43:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:43:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:43:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:43:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:43:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:43:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:43:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:43:46 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:43:47 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:43:36.283049 End time: 2026-03-05 01:43:46.873304 2026-03-05 01:43:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:43:47 INFO tclean::::casa ########################################## 2026-03-05 01:43:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:43:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:43:47 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) 2026-03-05 01:43:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:43:47 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:43:47 2026****** 2026-03-05 01:43:47 INFO ImageFitter::fit+ 2026-03-05 01:43:47 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:43:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:43:47 INFO ImageFitter::fit+ --- region: 2026-03-05 01:43:47 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:43:47 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:43:47 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:43:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:43:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:43:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:43:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:43:47 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) 2026-03-05 01:43:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:43:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:43:47 INFO imstat::::casa ########################################## 2026-03-05 01:43:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:43:47 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 ) 2026-03-05 01:43:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:43:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:43:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:43:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:43:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:43:47 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) 2026-03-05 01:43:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:43:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:43:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:43:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:43:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:43:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:43:47 INFO imstat:::: Values --- 2026-03-05 01:43:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:43:47 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:43:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:43:47 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-03-05 01:43:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:43:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:43:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:43:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-03-05 01:43:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:43:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:43:47 INFO imstat:::: Statistics --- 2026-03-05 01:43:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:43:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:43:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:43:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:43:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-03-05 01:43:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-03-05 01:43:47 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-03-05 01:43:47 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-03-05 01:43:47 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-03-05 01:43:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:43:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:43:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:43:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:43:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:43:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:43:47 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 2026-03-05 01:43:47 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:43:46.928306 End time: 2026-03-05 01:43:46.956378 2026-03-05 01:43:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:43:47 INFO imstat::::casa ########################################## 2026-03-05 01:43:47 INFO phaseshift::::casa ########################################## 2026-03-05 01:43:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:43:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40.100000528deg' ) 2026-03-05 01:43:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:43:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:43:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:43:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:43:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:43:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:43:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:43:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:43:47 INFO MSTransformManager::open Select data 2026-03-05 01:43:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:43:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:43:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40.100000528deg' successfully parsed 2026-03-05 01:43:50 INFO phaseshift::::casa Shift phase center 2026-03-05 01:43:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:43:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:43:46.969361 End time: 2026-03-05 01:43:50.429977 2026-03-05 01:43:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:43:50 INFO phaseshift::::casa ########################################## 2026-03-05 01:43:50 INFO tclean::::casa ########################################## 2026-03-05 01:43:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:43:50 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 ) 2026-03-05 01:43:50 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:43:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:43:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:43:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:43:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:43:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:43:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:43:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:43:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:43:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:43:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:43:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:43:52 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:43:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021588 2026-03-05 01:43:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:43:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:43:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:43:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:43:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:43:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:43:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:43:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:43:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:43:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:43:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:43:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:43:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:43:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:43:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:43:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:43:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:43:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:43:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:43:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:43:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:43:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:43:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:43:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:43:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:43:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:43:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:43:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:43:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:43:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:43:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:44:00 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:44:00 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:44:01 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:43:50.461688 End time: 2026-03-05 01:44:01.320063 2026-03-05 01:44:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:44:01 INFO tclean::::casa ########################################## 2026-03-05 01:44:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:44:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:44:01 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:44:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:44:01 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:44:01 2026****** 2026-03-05 01:44:01 INFO ImageFitter::fit+ 2026-03-05 01:44:01 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:44:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:44:01 INFO ImageFitter::fit+ --- region: 2026-03-05 01:44:01 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:44:01 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:44:01 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:44:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:44:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:44:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:44:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:44:01 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:44:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:44:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:44:01 INFO imstat::::casa ########################################## 2026-03-05 01:44:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:44:01 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:44:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:44:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:44:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:44:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:44:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:44:01 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:44:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:44:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:44:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:44:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:44:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:44:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:44:01 INFO imstat:::: Values --- 2026-03-05 01:44:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:44:01 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:44:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:44:01 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-03-05 01:44:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:44:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:44:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:44:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-03-05 01:44:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:44:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:44:01 INFO imstat:::: Statistics --- 2026-03-05 01:44:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:44:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:44:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:44:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:44:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-03-05 01:44:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-03-05 01:44:01 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-03-05 01:44:01 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-03-05 01:44:01 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-03-05 01:44:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:44:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:44:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:44:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:44:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:44:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:44:01 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 2026-03-05 01:44:01 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:44:01.376132 End time: 2026-03-05 01:44:01.398551 2026-03-05 01:44:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:44:01 INFO imstat::::casa ########################################## 2026-03-05 01:44:01 INFO phaseshift::::casa ########################################## 2026-03-05 01:44:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:44:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 0.699877039rad' ) 2026-03-05 01:44:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:44:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:44:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:44:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:44:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:44:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:44:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:44:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:44:01 INFO MSTransformManager::open Select data 2026-03-05 01:44:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:44:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:44:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 0.699877039rad' successfully parsed 2026-03-05 01:44:04 INFO phaseshift::::casa Shift phase center 2026-03-05 01:44:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:44:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:44:01.411995 End time: 2026-03-05 01:44:04.968250 2026-03-05 01:44:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:44:05 INFO phaseshift::::casa ########################################## 2026-03-05 01:44:05 INFO tclean::::casa ########################################## 2026-03-05 01:44:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:44:05 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 ) 2026-03-05 01:44:05 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:44:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:44:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:44:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:44:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:44:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:44:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:44:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:44:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:44:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:44:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:44:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:44:06 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:44:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023667 2026-03-05 01:44:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:44:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:44:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:44:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:44:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:44:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:44:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:44:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:44:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:44:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:44:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:44:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:44:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:44:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:44:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:44:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:44:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:44:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:44:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:44:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:44:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:44:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:44:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:44:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:44:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:44:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:44:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:44:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:44:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:44:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:44:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:44:15 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:44:16 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:44:05.000574 End time: 2026-03-05 01:44:15.869649 2026-03-05 01:44:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:44:16 INFO tclean::::casa ########################################## 2026-03-05 01:44:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:44:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:44:16 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:44:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:44:16 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:44:16 2026****** 2026-03-05 01:44:16 INFO ImageFitter::fit+ 2026-03-05 01:44:16 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:44:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:44:16 INFO ImageFitter::fit+ --- region: 2026-03-05 01:44:16 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:44:16 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:44:16 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:44:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:44:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:44:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:44:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:44:16 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:44:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:44:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:44:16 INFO imstat::::casa ########################################## 2026-03-05 01:44:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:44:16 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:44:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:44:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:44:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:44:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:44:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:44:16 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:44:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:44:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:44:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:44:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:44:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:44:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:44:16 INFO imstat:::: Values --- 2026-03-05 01:44:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:44:16 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:44:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:44:16 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-03-05 01:44:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:44:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:44:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:44:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-03-05 01:44:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:44:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:44:16 INFO imstat:::: Statistics --- 2026-03-05 01:44:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:44:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:44:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:44:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:44:16 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-03-05 01:44:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-03-05 01:44:16 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-03-05 01:44:16 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-03-05 01:44:16 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-03-05 01:44:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:44:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:44:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:44:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:44:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:44:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:44:16 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 2026-03-05 01:44:16 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:44:15.939655 End time: 2026-03-05 01:44:15.961290 2026-03-05 01:44:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:44:16 INFO imstat::::casa ########################################## 2026-03-05 01:44:16 INFO phaseshift::::casa ########################################## 2026-03-05 01:44:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:44:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40d06m0.0019' ) 2026-03-05 01:44:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:44:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:44:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:44:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:44:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:44:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:44:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:44:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:44:16 INFO MSTransformManager::open Select data 2026-03-05 01:44:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:44:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:44:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40d06m0.0019' successfully parsed 2026-03-05 01:44:19 INFO phaseshift::::casa Shift phase center 2026-03-05 01:44:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:44:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:44:15.974744 End time: 2026-03-05 01:44:19.672899 2026-03-05 01:44:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:44:20 INFO phaseshift::::casa ########################################## 2026-03-05 01:44:20 INFO tclean::::casa ########################################## 2026-03-05 01:44:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:44:20 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 ) 2026-03-05 01:44:20 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:44:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:44:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:44:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:44:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:44:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:44:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:44:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:44:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:44:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:44:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:44:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:44:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:44:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022297 2026-03-05 01:44:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:44:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:44:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:44:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:44:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:44:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:44:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:44:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:44:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:44:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:44:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:44:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:44:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:44:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:44:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:44:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:44:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:44:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:44:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:44:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:44:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:44:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:44:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:44:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:44:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:44:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:44:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:44:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:44:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:44:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:44:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:44:30 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:44:31 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:44:19.703533 End time: 2026-03-05 01:44:30.833514 2026-03-05 01:44:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:44:31 INFO tclean::::casa ########################################## 2026-03-05 01:44:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:44:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:44:31 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) 2026-03-05 01:44:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:44:31 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:44:31 2026****** 2026-03-05 01:44:31 INFO ImageFitter::fit+ 2026-03-05 01:44:31 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:44:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:44:31 INFO ImageFitter::fit+ --- region: 2026-03-05 01:44:31 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:44:31 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:44:31 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:44:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:44:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:44:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:44:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:44:31 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) 2026-03-05 01:44:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:44:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:44:31 INFO imstat::::casa ########################################## 2026-03-05 01:44:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:44:31 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 ) 2026-03-05 01:44:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:44:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:44:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:44:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:44:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:44:31 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) 2026-03-05 01:44:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:44:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:44:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:44:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:44:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:44:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:44:31 INFO imstat:::: Values --- 2026-03-05 01:44:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:44:31 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:44:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:44:31 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-03-05 01:44:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:44:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:44:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:44:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-03-05 01:44:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:44:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:44:31 INFO imstat:::: Statistics --- 2026-03-05 01:44:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:44:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:44:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:44:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:44:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-03-05 01:44:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-03-05 01:44:31 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-03-05 01:44:31 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-03-05 01:44:31 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-03-05 01:44:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:44:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:44:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:44:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:44:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:44:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:44:31 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 2026-03-05 01:44:31 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:44:30.887162 End time: 2026-03-05 01:44:30.908941 2026-03-05 01:44:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:44:31 INFO imstat::::casa ########################################## 2026-03-05 01:44:31 INFO phaseshift::::casa ########################################## 2026-03-05 01:44:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:44:31 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 02:40:24.0001' ) 2026-03-05 01:44:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:44:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:44:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:44:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:44:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:44:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:44:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:44:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:44:31 INFO MSTransformManager::open Select data 2026-03-05 01:44:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:44:34 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 ".". 2026-03-05 01:44:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 02:40:24.0001' successfully parsed 2026-03-05 01:44:34 INFO phaseshift::::casa Shift phase center 2026-03-05 01:44:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:44:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:44:30.922546 End time: 2026-03-05 01:44:34.556551 2026-03-05 01:44:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:44:35 INFO phaseshift::::casa ########################################## 2026-03-05 01:44:35 INFO tclean::::casa ########################################## 2026-03-05 01:44:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:44:35 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 ) 2026-03-05 01:44:35 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:44:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:44:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:44:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:44:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:44:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:44:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:44:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:44:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:44:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:44:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:44:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:44:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:44:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021185 2026-03-05 01:44:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:44:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:44:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:44:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:44:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:44:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:44:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:44:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:44:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:44:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:44:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:44:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:44:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:44:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:44:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:44:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:44:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:44:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:44:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:44:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:44:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:44:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:44:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:44:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:44:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:44:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:44:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:44:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:44:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:44:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:44:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:44:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:44:45 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:44:34.586689 End time: 2026-03-05 01:44:45.281839 2026-03-05 01:44:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:44:45 INFO tclean::::casa ########################################## 2026-03-05 01:44:45 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:44:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:44:45 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) 2026-03-05 01:44:45 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:44:45 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:44:45 2026****** 2026-03-05 01:44:45 INFO ImageFitter::fit+ 2026-03-05 01:44:45 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:44:45 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:44:45 INFO ImageFitter::fit+ --- region: 2026-03-05 01:44:45 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:44:45 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:44:45 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:44:45 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:44:45 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:44:45 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:44:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:44:45 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) 2026-03-05 01:44:45 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:44:45 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:44:45 INFO imstat::::casa ########################################## 2026-03-05 01:44:45 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:44:45 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 ) 2026-03-05 01:44:45 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:44:45 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:44:45 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:44:45 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:44:45 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:44:45 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) 2026-03-05 01:44:45 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:44:45 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:44:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:44:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:44:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:44:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:44:45 INFO imstat:::: Values --- 2026-03-05 01:44:45 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:44:45 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:44:45 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:44:45 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-03-05 01:44:45 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:44:45 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:44:45 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:44:45 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-03-05 01:44:45 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:44:45 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:44:45 INFO imstat:::: Statistics --- 2026-03-05 01:44:45 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:44:45 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:44:45 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:44:45 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:44:45 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-03-05 01:44:45 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-03-05 01:44:45 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-03-05 01:44:45 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-03-05 01:44:45 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-03-05 01:44:45 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:44:45 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:44:45 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:44:45 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:44:45 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:44:45 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:44:45 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 2026-03-05 01:44:45 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:44:45.334000 End time: 2026-03-05 01:44:45.354600 2026-03-05 01:44:45 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:44:45 INFO imstat::::casa ########################################## 2026-03-05 01:44:45 INFO phaseshift::::casa ########################################## 2026-03-05 01:44:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:44:45 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40.100000528deg' ) 2026-03-05 01:44:45 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:44:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:44:45 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:44:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:44:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:44:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:44:45 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:44:45 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:44:45 INFO MSTransformManager::open Select data 2026-03-05 01:44:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:44:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:44:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40.100000528deg' successfully parsed 2026-03-05 01:44:48 INFO phaseshift::::casa Shift phase center 2026-03-05 01:44:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:44:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:44:45.367396 End time: 2026-03-05 01:44:49.005071 2026-03-05 01:44:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:44:49 INFO phaseshift::::casa ########################################## 2026-03-05 01:44:49 INFO tclean::::casa ########################################## 2026-03-05 01:44:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:44:49 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 ) 2026-03-05 01:44:49 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:44:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:44:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:44:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:44:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:44:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:44:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:44:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:44:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:44:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:44:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:44:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:44:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:44:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023818 2026-03-05 01:44:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:44:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:44:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:44:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:44:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:44:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:44:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:44:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:44:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:44:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:44:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:44:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:44:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:44:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:44:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:44:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:44:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:44:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:44:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:44:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:44:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:44:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:44:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:44:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:44:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:44:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:44:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:44:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:44:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:44:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:44:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:44:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:44:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:45:01 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:44:49.036868 End time: 2026-03-05 01:45:00.499878 2026-03-05 01:45:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:45:01 INFO tclean::::casa ########################################## 2026-03-05 01:45:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:45:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:45:01 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) 2026-03-05 01:45:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:45:01 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:45:01 2026****** 2026-03-05 01:45:01 INFO ImageFitter::fit+ 2026-03-05 01:45:01 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:45:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:45:01 INFO ImageFitter::fit+ --- region: 2026-03-05 01:45:01 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:45:01 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:45:01 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:45:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:45:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:45:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:45:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:45:01 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) 2026-03-05 01:45:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:45:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:45:01 INFO imstat::::casa ########################################## 2026-03-05 01:45:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:45:01 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 ) 2026-03-05 01:45:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:45:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:45:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:45:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:45:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:45:01 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) 2026-03-05 01:45:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:45:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:45:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:45:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:45:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:45:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:45:01 INFO imstat:::: Values --- 2026-03-05 01:45:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:45:01 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:45:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:45:01 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-03-05 01:45:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:45:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:45:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:45:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-03-05 01:45:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:45:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:45:01 INFO imstat:::: Statistics --- 2026-03-05 01:45:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:45:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:45:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:45:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:45:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-03-05 01:45:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-03-05 01:45:01 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-03-05 01:45:01 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-03-05 01:45:01 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-03-05 01:45:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:45:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:45:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:45:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:45:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:45:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:45:01 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 2026-03-05 01:45:01 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:45:00.557758 End time: 2026-03-05 01:45:00.593310 2026-03-05 01:45:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:45:01 INFO imstat::::casa ########################################## 2026-03-05 01:45:01 INFO phaseshift::::casa ########################################## 2026-03-05 01:45:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:45:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 0.699877039rad' ) 2026-03-05 01:45:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:45:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:45:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:45:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:45:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:45:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:45:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:45:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:45:01 INFO MSTransformManager::open Select data 2026-03-05 01:45:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:45:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:45:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 0.699877039rad' successfully parsed 2026-03-05 01:45:03 INFO phaseshift::::casa Shift phase center 2026-03-05 01:45:04 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:45:04 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:45:00.606456 End time: 2026-03-05 01:45:04.186008 2026-03-05 01:45:04 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:45:04 INFO phaseshift::::casa ########################################## 2026-03-05 01:45:04 INFO tclean::::casa ########################################## 2026-03-05 01:45:04 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:45:04 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 ) 2026-03-05 01:45:04 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:45:04 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:45:04 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:45:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:45:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:45:04 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:45:04 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:45:04 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:45:04 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:45:04 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:45:04 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:45:04 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:45:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:45:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021861 2026-03-05 01:45:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:45:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:45:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:45:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:45:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:45:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:45:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:45:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:45:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:45:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:45:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:45:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:45:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:45:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:45:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:45:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:45:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:45:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:45:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:45:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:45:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:45:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:45:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:45:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:45:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:45:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:45:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:45:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:45:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:45:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:45:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:45:14 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:45:15 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:45:04.217085 End time: 2026-03-05 01:45:15.381893 2026-03-05 01:45:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:45:15 INFO tclean::::casa ########################################## 2026-03-05 01:45:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:45:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:45:15 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:45:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:45:15 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:45:15 2026****** 2026-03-05 01:45:15 INFO ImageFitter::fit+ 2026-03-05 01:45:15 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:45:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:45:15 INFO ImageFitter::fit+ --- region: 2026-03-05 01:45:15 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:45:15 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:45:15 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:45:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:45:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:45:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:45:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:45:15 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:45:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:45:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:45:15 INFO imstat::::casa ########################################## 2026-03-05 01:45:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:45:15 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:45:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:45:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:45:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:45:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:45:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:45:15 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:45:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:45:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:45:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:45:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:45:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:45:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:45:15 INFO imstat:::: Values --- 2026-03-05 01:45:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:45:15 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:45:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:45:15 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-03-05 01:45:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:45:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:45:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:45:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-03-05 01:45:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:45:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:45:15 INFO imstat:::: Statistics --- 2026-03-05 01:45:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:45:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:45:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:45:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:45:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-03-05 01:45:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-03-05 01:45:15 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-03-05 01:45:15 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-03-05 01:45:15 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-03-05 01:45:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:45:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:45:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:45:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:45:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:45:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:45:15 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 2026-03-05 01:45:15 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:45:15.436874 End time: 2026-03-05 01:45:15.457770 2026-03-05 01:45:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:45:15 INFO imstat::::casa ########################################## 2026-03-05 01:45:15 INFO phaseshift::::casa ########################################## 2026-03-05 01:45:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:45:15 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40d06m0.0019' ) 2026-03-05 01:45:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:45:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:45:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:45:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:45:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:45:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:45:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:45:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:45:15 INFO MSTransformManager::open Select data 2026-03-05 01:45:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:45:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:45:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40d06m0.0019' successfully parsed 2026-03-05 01:45:19 INFO phaseshift::::casa Shift phase center 2026-03-05 01:45:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:45:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:45:15.470877 End time: 2026-03-05 01:45:19.450966 2026-03-05 01:45:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:45:19 INFO phaseshift::::casa ########################################## 2026-03-05 01:45:19 INFO tclean::::casa ########################################## 2026-03-05 01:45:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:45:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-03-05 01:45:19 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:45:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:45:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:45:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:45:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:45:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:45:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:45:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:45:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:45:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:45:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:45:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:45:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:45:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02261 2026-03-05 01:45:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:45:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:45:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:45:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:45:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:45:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:45:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:45:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:45:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:45:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:45:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:45:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:45:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:45:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:45:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:45:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:45:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:45:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:45:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:45:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:45:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:45:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:45:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:45:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:45:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:45:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:45:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:45:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:45:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:45:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:45:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:45:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:45:30 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:45:19.480251 End time: 2026-03-05 01:45:30.384953 2026-03-05 01:45:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:45:30 INFO tclean::::casa ########################################## 2026-03-05 01:45:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:45:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:45:30 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) 2026-03-05 01:45:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:45:30 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:45:30 2026****** 2026-03-05 01:45:30 INFO ImageFitter::fit+ 2026-03-05 01:45:30 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:45:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:45:30 INFO ImageFitter::fit+ --- region: 2026-03-05 01:45:30 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:45:30 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:45:30 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:45:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:45:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:45:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:45:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:45:30 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) 2026-03-05 01:45:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:45:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:45:30 INFO imstat::::casa ########################################## 2026-03-05 01:45:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:45:30 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 ) 2026-03-05 01:45:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:45:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:45:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:45:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:45:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:45:30 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) 2026-03-05 01:45:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:45:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:45:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:45:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:45:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:45:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:45:30 INFO imstat:::: Values --- 2026-03-05 01:45:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:45:30 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:45:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:45:30 INFO imstat:::: -- minimum value [min]: -7.77984e-05 Jy/beam 2026-03-05 01:45:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:45:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:45:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:45:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-03-05 01:45:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:45:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:45:30 INFO imstat:::: Statistics --- 2026-03-05 01:45:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:45:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:45:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:45:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:45:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86704e-05 Jy/beam 2026-03-05 01:45:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7365e-05 Jy/beam 2026-03-05 01:45:30 INFO imstat:::: -- IQR [quartile]: 3.56348e-05 Jy/beam 2026-03-05 01:45:30 INFO imstat:::: -- First quartile [q1]: -3.45131e-05 Jy/beam 2026-03-05 01:45:30 INFO imstat:::: -- Third quartile [q3]: 1.12172e-06 Jy/beam 2026-03-05 01:45:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:45:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:45:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:45:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:45:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:45:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:45:30 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 2026-03-05 01:45:30 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:45:30.439873 End time: 2026-03-05 01:45:30.461600 2026-03-05 01:45:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:45:30 INFO imstat::::casa ########################################## 2026-03-05 01:45:30 INFO phaseshift::::casa ########################################## 2026-03-05 01:45:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:45:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 02:40:24.0001' ) 2026-03-05 01:45:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:45:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:45:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:45:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:45:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:45:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:45:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:45:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:45:30 INFO MSTransformManager::open Select data 2026-03-05 01:45:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:45:34 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 ".". 2026-03-05 01:45:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 02:40:24.0001' successfully parsed 2026-03-05 01:45:34 INFO phaseshift::::casa Shift phase center 2026-03-05 01:45:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:45:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:45:30.474779 End time: 2026-03-05 01:45:34.491071 2026-03-05 01:45:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:45:34 INFO phaseshift::::casa ########################################## 2026-03-05 01:45:35 INFO tclean::::casa ########################################## 2026-03-05 01:45:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:45:35 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 ) 2026-03-05 01:45:35 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:45:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:45:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:45:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:45:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:45:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:45:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:45:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:45:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:45:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:45:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:45:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:45:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:45:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021026 2026-03-05 01:45:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:45:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:45:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:45:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:45:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:45:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:45:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:45:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:45:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:45:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:45:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:45:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:45:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:45:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:45:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:45:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:45:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:45:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:45:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:45:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:45:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:45:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:45:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:45:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:45:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:45:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:45:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:45:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:45:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:45:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:45:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:45:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:45:46 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:45:34.520870 End time: 2026-03-05 01:45:45.879965 2026-03-05 01:45:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:45:46 INFO tclean::::casa ########################################## 2026-03-05 01:45:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:45:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:45:46 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) 2026-03-05 01:45:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:45:46 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:45:46 2026****** 2026-03-05 01:45:46 INFO ImageFitter::fit+ 2026-03-05 01:45:46 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:45:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:45:46 INFO ImageFitter::fit+ --- region: 2026-03-05 01:45:46 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:45:46 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:45:46 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:45:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:45:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:45:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:45:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:45:46 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) 2026-03-05 01:45:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116894 Jy 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126508 Jy 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:45:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:45:46 INFO imstat::::casa ########################################## 2026-03-05 01:45:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:45:46 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 ) 2026-03-05 01:45:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:45:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:45:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:45:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:45:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:45:46 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) 2026-03-05 01:45:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:45:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:45:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:45:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:45:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:45:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:45:46 INFO imstat:::: Values --- 2026-03-05 01:45:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:45:46 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:45:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:45:46 INFO imstat:::: -- minimum value [min]: -7.78076e-05 Jy/beam 2026-03-05 01:45:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:45:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:45:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:45:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-03-05 01:45:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:45:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:45:46 INFO imstat:::: Statistics --- 2026-03-05 01:45:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:45:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:45:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:45:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:45:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86848e-05 Jy/beam 2026-03-05 01:45:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73951e-05 Jy/beam 2026-03-05 01:45:46 INFO imstat:::: -- IQR [quartile]: 3.56676e-05 Jy/beam 2026-03-05 01:45:46 INFO imstat:::: -- First quartile [q1]: -3.45186e-05 Jy/beam 2026-03-05 01:45:46 INFO imstat:::: -- Third quartile [q3]: 1.14894e-06 Jy/beam 2026-03-05 01:45:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:45:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:45:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:45:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:45:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:45:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:45:46 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 2026-03-05 01:45:46 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:45:45.932364 End time: 2026-03-05 01:45:45.952058 2026-03-05 01:45:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:45:46 INFO imstat::::casa ########################################## 2026-03-05 01:45:46 INFO phaseshift::::casa ########################################## 2026-03-05 01:45:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:45:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40.100000528deg' ) 2026-03-05 01:45:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:45:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:45:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:45:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:45:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:45:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:45:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:45:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:45:46 INFO MSTransformManager::open Select data 2026-03-05 01:45:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:45:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:45:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40.100000528deg' successfully parsed 2026-03-05 01:45:49 INFO phaseshift::::casa Shift phase center 2026-03-05 01:45:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:45:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:45:45.964845 End time: 2026-03-05 01:45:49.810483 2026-03-05 01:45:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:45:50 INFO phaseshift::::casa ########################################## 2026-03-05 01:45:50 INFO tclean::::casa ########################################## 2026-03-05 01:45:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:45:50 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 ) 2026-03-05 01:45:50 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:45:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:45:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:45:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:45:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:45:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:45:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:45:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:45:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:45:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:45:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:45:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:45:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:45:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021742 2026-03-05 01:45:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:45:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:45:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:45:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:45:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:45:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:45:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:45:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:45:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:45:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:45:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:45:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:45:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:45:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:45:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:45:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:45:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:45:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:45:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:45:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:45:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:45:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:45:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:45:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:45:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:45:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:45:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:45:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:45:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:45:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:45:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:46:00 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:46:00 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:46:01 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:45:49.842496 End time: 2026-03-05 01:46:01.265036 2026-03-05 01:46:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:46:01 INFO tclean::::casa ########################################## 2026-03-05 01:46:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:46:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:46:01 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) 2026-03-05 01:46:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:46:01 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:46:01 2026****** 2026-03-05 01:46:01 INFO ImageFitter::fit+ 2026-03-05 01:46:01 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:46:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:46:01 INFO ImageFitter::fit+ --- region: 2026-03-05 01:46:01 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:46:01 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:46:01 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:46:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:46:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:46:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:46:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:46:01 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) 2026-03-05 01:46:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116882 Jy 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:46:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:46:01 INFO imstat::::casa ########################################## 2026-03-05 01:46:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:46:01 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 ) 2026-03-05 01:46:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:46:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:46:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:46:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:46:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:46:01 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) 2026-03-05 01:46:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:46:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:46:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:46:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:46:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:46:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:46:01 INFO imstat:::: Values --- 2026-03-05 01:46:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:46:01 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:46:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:46:01 INFO imstat:::: -- minimum value [min]: -7.77982e-05 Jy/beam 2026-03-05 01:46:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:46:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:46:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:46:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-03-05 01:46:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:46:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:46:01 INFO imstat:::: Statistics --- 2026-03-05 01:46:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:46:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:46:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:46:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:46:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86711e-05 Jy/beam 2026-03-05 01:46:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73646e-05 Jy/beam 2026-03-05 01:46:01 INFO imstat:::: -- IQR [quartile]: 3.56367e-05 Jy/beam 2026-03-05 01:46:01 INFO imstat:::: -- First quartile [q1]: -3.45138e-05 Jy/beam 2026-03-05 01:46:01 INFO imstat:::: -- Third quartile [q3]: 1.12291e-06 Jy/beam 2026-03-05 01:46:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:46:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:46:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:46:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:46:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:46:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:46:01 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 2026-03-05 01:46:01 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:46:01.321978 End time: 2026-03-05 01:46:01.344518 2026-03-05 01:46:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:46:01 INFO imstat::::casa ########################################## 2026-03-05 01:46:01 INFO phaseshift::::casa ########################################## 2026-03-05 01:46:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:46:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 0.699877039rad' ) 2026-03-05 01:46:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:46:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:46:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:46:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:46:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:46:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:46:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:46:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:46:01 INFO MSTransformManager::open Select data 2026-03-05 01:46:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:46:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:46:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 0.699877039rad' successfully parsed 2026-03-05 01:46:04 INFO phaseshift::::casa Shift phase center 2026-03-05 01:46:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:46:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:46:01.358953 End time: 2026-03-05 01:46:04.985041 2026-03-05 01:46:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:46:05 INFO phaseshift::::casa ########################################## 2026-03-05 01:46:05 INFO tclean::::casa ########################################## 2026-03-05 01:46:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:46:05 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 ) 2026-03-05 01:46:05 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:46:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:46:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:46:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:46:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:46:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:46:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:46:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:46:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:46:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:46:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:46:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:46:06 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:46:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021911 2026-03-05 01:46:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:46:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:46:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:46:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:46:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:46:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:46:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:46:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:46:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:46:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:46:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:46:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:46:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:46:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:46:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:46:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:46:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:46:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374443277716637, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:46:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:46:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:46:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:46:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:46:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852561634033918, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:46:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:46:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:46:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:46:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:46:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:46:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:46:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:46:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:46:15 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:46:16 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:46:05.014834 End time: 2026-03-05 01:46:15.759417 2026-03-05 01:46:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:46:16 INFO tclean::::casa ########################################## 2026-03-05 01:46:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:46:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:46:16 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:46:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:46:16 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:46:16 2026****** 2026-03-05 01:46:16 INFO ImageFitter::fit+ 2026-03-05 01:46:16 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:46:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:46:16 INFO ImageFitter::fit+ --- region: 2026-03-05 01:46:16 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:46:16 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:46:16 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:46:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:46:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:46:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:46:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:46:16 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:46:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:46:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:46:16 INFO imstat::::casa ########################################## 2026-03-05 01:46:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:46:16 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:46:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:46:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:46:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:46:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:46:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:46:16 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:46:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:46:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:46:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:46:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:46:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:46:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:46:16 INFO imstat:::: Values --- 2026-03-05 01:46:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:46:16 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:46:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:46:16 INFO imstat:::: -- minimum value [min]: -7.77898e-05 Jy/beam 2026-03-05 01:46:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:46:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:46:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:46:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-03-05 01:46:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:46:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:46:16 INFO imstat:::: Statistics --- 2026-03-05 01:46:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:46:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:46:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:46:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:46:16 INFO imstat:::: -- Median of the pixel values [median]: -1.86769e-05 Jy/beam 2026-03-05 01:46:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73662e-05 Jy/beam 2026-03-05 01:46:16 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-03-05 01:46:16 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-03-05 01:46:16 INFO imstat:::: -- Third quartile [q3]: 1.1187e-06 Jy/beam 2026-03-05 01:46:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:46:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:46:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:46:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:46:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:46:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:46:16 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 2026-03-05 01:46:16 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:46:15.812555 End time: 2026-03-05 01:46:15.833195 2026-03-05 01:46:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:46:16 INFO imstat::::casa ########################################## 2026-03-05 01:46:16 INFO phaseshift::::casa ########################################## 2026-03-05 01:46:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:46:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 +006d21m09.7433' ) 2026-03-05 01:46:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:46:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:46:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:46:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:46:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:46:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:46:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:46:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:46:16 INFO MSTransformManager::open Select data 2026-03-05 01:46:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:46:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:46:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 +006d21m09.7433' successfully parsed 2026-03-05 01:46:19 INFO phaseshift::::casa Shift phase center 2026-03-05 01:46:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:46:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:46:15.847111 End time: 2026-03-05 01:46:19.514863 2026-03-05 01:46:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:46:20 INFO phaseshift::::casa ########################################## 2026-03-05 01:46:20 INFO tclean::::casa ########################################## 2026-03-05 01:46:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:46:20 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 ) 2026-03-05 01:46:20 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:46:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:46:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:46:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:46:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:46:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:46:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:46:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:46:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:46:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:46:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:46:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:46:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:46:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022412 2026-03-05 01:46:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:46:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:46:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:46:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:46:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:46:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:46:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:46:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:46:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:46:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:46:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:46:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:46:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:46:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:46:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:46:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:46:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:46:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:46:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:46:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:46:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:46:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:46:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:46:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:46:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:46:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:46:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:46:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:46:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:46:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:46:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:46:30 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:46:31 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:46:19.544466 End time: 2026-03-05 01:46:30.930630 2026-03-05 01:46:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:46:31 INFO tclean::::casa ########################################## 2026-03-05 01:46:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:46:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:46:31 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) 2026-03-05 01:46:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:46:31 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:46:31 2026****** 2026-03-05 01:46:31 INFO ImageFitter::fit+ 2026-03-05 01:46:31 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:46:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:46:31 INFO ImageFitter::fit+ --- region: 2026-03-05 01:46:31 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:46:31 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:46:31 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:46:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:46:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:46:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:46:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:46:31 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) 2026-03-05 01:46:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:46:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:46:31 INFO imstat::::casa ########################################## 2026-03-05 01:46:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:46:31 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 ) 2026-03-05 01:46:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:46:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:46:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:46:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:46:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:46:31 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) 2026-03-05 01:46:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:46:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:46:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:46:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:46:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:46:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:46:31 INFO imstat:::: Values --- 2026-03-05 01:46:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:46:31 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:46:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:46:31 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-03-05 01:46:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:46:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:46:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:46:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:46:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:46:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:46:31 INFO imstat:::: Statistics --- 2026-03-05 01:46:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:46:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:46:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:46:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:46:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-03-05 01:46:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-03-05 01:46:31 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-03-05 01:46:31 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-03-05 01:46:31 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-03-05 01:46:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:46:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:46:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:46:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:46:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:46:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:46:31 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 2026-03-05 01:46:31 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:46:30.987958 End time: 2026-03-05 01:46:31.010701 2026-03-05 01:46:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:46:31 INFO imstat::::casa ########################################## 2026-03-05 01:46:31 INFO phaseshift::::casa ########################################## 2026-03-05 01:46:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:46:31 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 00:25:24.6496' ) 2026-03-05 01:46:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:46:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:46:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:46:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:46:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:46:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:46:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:46:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:46:31 INFO MSTransformManager::open Select data 2026-03-05 01:46:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:46:34 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 ".". 2026-03-05 01:46:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 00:25:24.6496' successfully parsed 2026-03-05 01:46:34 INFO phaseshift::::casa Shift phase center 2026-03-05 01:46:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:46:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:46:31.024141 End time: 2026-03-05 01:46:34.453884 2026-03-05 01:46:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:46:34 INFO phaseshift::::casa ########################################## 2026-03-05 01:46:34 INFO tclean::::casa ########################################## 2026-03-05 01:46:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:46:34 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 ) 2026-03-05 01:46:34 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:46:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:46:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:46:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:46:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:46:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:46:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:46:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:46:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:46:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:46:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:46:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:46:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:46:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023423 2026-03-05 01:46:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:46:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:46:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:46:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:46:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:46:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:46:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:46:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:46:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:46:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:46:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:46:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:46:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:46:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:46:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:46:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:46:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:46:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:46:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:46:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:46:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:46:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:46:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:46:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:46:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:46:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:46:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:46:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:46:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:46:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:46:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:46:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:46:45 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:46:34.485139 End time: 2026-03-05 01:46:45.324282 2026-03-05 01:46:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:46:45 INFO tclean::::casa ########################################## 2026-03-05 01:46:45 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:46:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:46:45 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) 2026-03-05 01:46:45 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:46:45 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:46:45 2026****** 2026-03-05 01:46:45 INFO ImageFitter::fit+ 2026-03-05 01:46:45 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:46:45 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:46:45 INFO ImageFitter::fit+ --- region: 2026-03-05 01:46:45 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:46:45 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:46:45 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:46:45 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:46:45 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:46:45 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:46:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:46:45 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) 2026-03-05 01:46:45 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:46:45 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:46:45 INFO imstat::::casa ########################################## 2026-03-05 01:46:45 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:46:45 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 ) 2026-03-05 01:46:45 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:46:45 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:46:45 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:46:45 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:46:45 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:46:45 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) 2026-03-05 01:46:45 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:46:45 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:46:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:46:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:46:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-03-05 01:46:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-03-05 01:46:45 INFO imstat:::: Values --- 2026-03-05 01:46:45 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:46:45 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:46:45 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:46:45 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-03-05 01:46:45 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:46:45 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:46:45 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:46:45 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:46:45 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:46:45 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:46:45 INFO imstat:::: Statistics --- 2026-03-05 01:46:45 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:46:45 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:46:45 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:46:45 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:46:45 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-03-05 01:46:45 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-03-05 01:46:45 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-03-05 01:46:45 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-03-05 01:46:45 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-03-05 01:46:45 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:46:45 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:46:45 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:46:45 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:46:45 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:46:45 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:46:45 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 2026-03-05 01:46:45 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:46:45.385183 End time: 2026-03-05 01:46:45.411382 2026-03-05 01:46:45 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:46:45 INFO imstat::::casa ########################################## 2026-03-05 01:46:45 INFO phaseshift::::casa ########################################## 2026-03-05 01:46:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:46:45 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 6.352706472deg' ) 2026-03-05 01:46:45 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:46:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:46:45 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:46:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:46:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:46:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:46:45 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:46:45 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:46:45 INFO MSTransformManager::open Select data 2026-03-05 01:46:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:46:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:46:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 6.352706472deg' successfully parsed 2026-03-05 01:46:48 INFO phaseshift::::casa Shift phase center 2026-03-05 01:46:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:46:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:46:45.424874 End time: 2026-03-05 01:46:48.926199 2026-03-05 01:46:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:46:49 INFO phaseshift::::casa ########################################## 2026-03-05 01:46:49 INFO tclean::::casa ########################################## 2026-03-05 01:46:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:46:49 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 ) 2026-03-05 01:46:49 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:46:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:46:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:46:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:46:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:46:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:46:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:46:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:46:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:46:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:46:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:46:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:46:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:46:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02176 2026-03-05 01:46:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:46:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:46:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:46:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:46:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:46:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:46:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:46:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:46:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:46:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:46:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:46:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:46:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:46:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:46:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:46:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:46:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:46:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:46:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:46:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:46:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:46:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:46:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:46:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:46:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:46:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:46:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:46:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:46:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:46:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:46:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:46:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:46:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:47:00 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:46:48.957600 End time: 2026-03-05 01:46:59.828630 2026-03-05 01:47:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:47:00 INFO tclean::::casa ########################################## 2026-03-05 01:47:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:47:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:00 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) 2026-03-05 01:47:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:47:00 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:47:00 2026****** 2026-03-05 01:47:00 INFO ImageFitter::fit+ 2026-03-05 01:47:00 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:47:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:47:00 INFO ImageFitter::fit+ --- region: 2026-03-05 01:47:00 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:47:00 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:47:00 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:47:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:47:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:47:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:47:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:00 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) 2026-03-05 01:47:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:47:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:47:00 INFO imstat::::casa ########################################## 2026-03-05 01:47:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:47:00 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 ) 2026-03-05 01:47:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:47:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:47:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:47:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:47:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:00 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) 2026-03-05 01:47:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:47:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:47:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:47:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:47:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:47:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:47:00 INFO imstat:::: Values --- 2026-03-05 01:47:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:47:00 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:47:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:47:00 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-03-05 01:47:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:47:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:47:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:47:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:47:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:47:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:47:00 INFO imstat:::: Statistics --- 2026-03-05 01:47:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:47:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:47:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:47:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:47:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-03-05 01:47:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-03-05 01:47:00 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-03-05 01:47:00 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-03-05 01:47:00 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-03-05 01:47:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:47:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:47:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:47:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:47:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:47:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:47:00 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 2026-03-05 01:47:00 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:46:59.885768 End time: 2026-03-05 01:46:59.906743 2026-03-05 01:47:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:47:00 INFO imstat::::casa ########################################## 2026-03-05 01:47:00 INFO phaseshift::::casa ########################################## 2026-03-05 01:47:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:47:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 0.110875644rad' ) 2026-03-05 01:47:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:47:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:47:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:47:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:47:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:47:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:47:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:47:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:47:00 INFO MSTransformManager::open Select data 2026-03-05 01:47:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:47:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:47:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 0.110875644rad' successfully parsed 2026-03-05 01:47:02 INFO phaseshift::::casa Shift phase center 2026-03-05 01:47:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:47:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:46:59.919885 End time: 2026-03-05 01:47:03.107151 2026-03-05 01:47:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:47:03 INFO phaseshift::::casa ########################################## 2026-03-05 01:47:03 INFO tclean::::casa ########################################## 2026-03-05 01:47:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:47:03 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 ) 2026-03-05 01:47:03 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:47:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:47:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:47:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:47:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:47:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:47:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:47:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:47:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:47:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:47:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:47:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:47:04 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:47:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023514 2026-03-05 01:47:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:47:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:47:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:47:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:47:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:47:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:47:06 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:47:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:47:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:47:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:47:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:47:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:47:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:47:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:47:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:47:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:47:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:47:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:47:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:47:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:47:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:47:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:47:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:47:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:47:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:47:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:47:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:47:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:47:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:47:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:47:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:47:13 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:47:14 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:47:03.138305 End time: 2026-03-05 01:47:13.868181 2026-03-05 01:47:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:47:14 INFO tclean::::casa ########################################## 2026-03-05 01:47:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:47:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:14 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) 2026-03-05 01:47:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:47:14 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:47:14 2026****** 2026-03-05 01:47:14 INFO ImageFitter::fit+ 2026-03-05 01:47:14 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:47:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:47:14 INFO ImageFitter::fit+ --- region: 2026-03-05 01:47:14 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:47:14 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:47:14 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:47:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:47:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:47:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:47:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:14 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) 2026-03-05 01:47:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:47:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:47:14 INFO imstat::::casa ########################################## 2026-03-05 01:47:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:47:14 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 ) 2026-03-05 01:47:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:47:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:47:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:47:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:47:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:14 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) 2026-03-05 01:47:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:47:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:47:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:47:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:47:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:47:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:47:14 INFO imstat:::: Values --- 2026-03-05 01:47:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:47:14 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:47:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:47:14 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-03-05 01:47:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:47:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:47:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:47:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-03-05 01:47:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:47:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:47:14 INFO imstat:::: Statistics --- 2026-03-05 01:47:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:47:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:47:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:47:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:47:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-03-05 01:47:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-03-05 01:47:14 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-03-05 01:47:14 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-03-05 01:47:14 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-03-05 01:47:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:47:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:47:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:47:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:47:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:47:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:47:14 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 2026-03-05 01:47:14 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:47:13.924964 End time: 2026-03-05 01:47:13.948111 2026-03-05 01:47:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:47:14 INFO imstat::::casa ########################################## 2026-03-05 01:47:14 INFO phaseshift::::casa ########################################## 2026-03-05 01:47:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:47:14 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 +006d21m09.7433' ) 2026-03-05 01:47:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:47:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:47:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:47:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:47:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:47:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:47:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:47:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:47:14 INFO MSTransformManager::open Select data 2026-03-05 01:47:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:47:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:47:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 +006d21m09.7433' successfully parsed 2026-03-05 01:47:17 INFO phaseshift::::casa Shift phase center 2026-03-05 01:47:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:47:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:47:13.961503 End time: 2026-03-05 01:47:17.587021 2026-03-05 01:47:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:47:18 INFO phaseshift::::casa ########################################## 2026-03-05 01:47:18 INFO tclean::::casa ########################################## 2026-03-05 01:47:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:47:18 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 ) 2026-03-05 01:47:18 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:47:18 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:47:18 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:47:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:47:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:47:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:47:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:47:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:47:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:47:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:47:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:47:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:47:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:47:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021032 2026-03-05 01:47:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:47:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:47:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:47:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:47:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:47:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:47:20 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:47:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:47:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:47:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:47:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:47:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:47:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:47:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:47:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:47:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:47:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:47:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:47:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:47:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:47:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:47:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:47:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:47:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:47:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:47:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:47:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:47:26 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:47:26 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:47:26 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:47:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:47:27 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:47:29 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:47:17.617963 End time: 2026-03-05 01:47:28.545446 2026-03-05 01:47:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:47:29 INFO tclean::::casa ########################################## 2026-03-05 01:47:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:47:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:29 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) 2026-03-05 01:47:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:47:29 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:47:29 2026****** 2026-03-05 01:47:29 INFO ImageFitter::fit+ 2026-03-05 01:47:29 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:47:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:47:29 INFO ImageFitter::fit+ --- region: 2026-03-05 01:47:29 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:47:29 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:47:29 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:47:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:47:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:47:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:47:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:29 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:47:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:47:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:47:29 INFO imstat::::casa ########################################## 2026-03-05 01:47:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:47:29 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 ) 2026-03-05 01:47:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:47:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:47:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:47:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:47:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:29 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) 2026-03-05 01:47:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:47:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:47:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:47:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:47:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:47:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:47:29 INFO imstat:::: Values --- 2026-03-05 01:47:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:47:29 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:47:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:47:29 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-03-05 01:47:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:47:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:47:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:47:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:47:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:47:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:47:29 INFO imstat:::: Statistics --- 2026-03-05 01:47:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:47:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:47:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:47:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:47:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-03-05 01:47:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-03-05 01:47:29 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-03-05 01:47:29 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-03-05 01:47:29 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-03-05 01:47:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:47:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:47:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:47:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:47:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:47:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:47:29 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 2026-03-05 01:47:29 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:47:28.602319 End time: 2026-03-05 01:47:28.624581 2026-03-05 01:47:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:47:29 INFO imstat::::casa ########################################## 2026-03-05 01:47:29 INFO phaseshift::::casa ########################################## 2026-03-05 01:47:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:47:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 00:25:24.6496' ) 2026-03-05 01:47:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:47:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:47:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:47:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:47:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:47:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:47:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:47:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:47:29 INFO MSTransformManager::open Select data 2026-03-05 01:47:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:47:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-03-05 01:47:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 00:25:24.6496' successfully parsed 2026-03-05 01:47:32 INFO phaseshift::::casa Shift phase center 2026-03-05 01:47:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:47:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:47:28.637521 End time: 2026-03-05 01:47:32.505998 2026-03-05 01:47:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:47:33 INFO phaseshift::::casa ########################################## 2026-03-05 01:47:33 INFO tclean::::casa ########################################## 2026-03-05 01:47:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:47:33 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 ) 2026-03-05 01:47:33 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:47:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:47:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:47:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:47:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:47:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:47:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:47:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:47:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.93 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:47:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:47:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:47:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:47:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:47:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021465 2026-03-05 01:47:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:47:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:47:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:47:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:47:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:47:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:47:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:47:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:47:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:47:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:47:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:47:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:47:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:47:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:47:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:47:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:47:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:47:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:47:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:47:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:47:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:47:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:47:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:47:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:47:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:47:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:47:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:47:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:47:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:47:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:47:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:47:43 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:47:44 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:47:32.536597 End time: 2026-03-05 01:47:43.813405 2026-03-05 01:47:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:47:44 INFO tclean::::casa ########################################## 2026-03-05 01:47:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:47:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:44 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) 2026-03-05 01:47:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:47:44 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:47:44 2026****** 2026-03-05 01:47:44 INFO ImageFitter::fit+ 2026-03-05 01:47:44 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:47:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:47:44 INFO ImageFitter::fit+ --- region: 2026-03-05 01:47:44 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:47:44 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:47:44 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:47:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:47:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:47:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:47:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:44 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) 2026-03-05 01:47:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:47:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:47:44 INFO imstat::::casa ########################################## 2026-03-05 01:47:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:47:44 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 ) 2026-03-05 01:47:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:47:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:47:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:47:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:47:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:44 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) 2026-03-05 01:47:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:47:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:47:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:47:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:47:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-03-05 01:47:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-03-05 01:47:44 INFO imstat:::: Values --- 2026-03-05 01:47:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:47:44 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:47:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:47:44 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-03-05 01:47:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:47:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:47:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:47:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:47:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:47:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:47:44 INFO imstat:::: Statistics --- 2026-03-05 01:47:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:47:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:47:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:47:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:47:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-03-05 01:47:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-03-05 01:47:44 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-03-05 01:47:44 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-03-05 01:47:44 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-03-05 01:47:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:47:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:47:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:47:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:47:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:47:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:47:44 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 2026-03-05 01:47:44 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:47:43.870167 End time: 2026-03-05 01:47:43.891016 2026-03-05 01:47:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:47:44 INFO imstat::::casa ########################################## 2026-03-05 01:47:44 INFO phaseshift::::casa ########################################## 2026-03-05 01:47:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:47:44 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 6.352706472deg' ) 2026-03-05 01:47:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:47:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:47:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:47:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:47:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:47:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:47:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:47:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:47:44 INFO MSTransformManager::open Select data 2026-03-05 01:47:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:47:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:47:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 6.352706472deg' successfully parsed 2026-03-05 01:47:47 INFO phaseshift::::casa Shift phase center 2026-03-05 01:47:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:47:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:47:43.904023 End time: 2026-03-05 01:47:48.183704 2026-03-05 01:47:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:47:48 INFO phaseshift::::casa ########################################## 2026-03-05 01:47:48 INFO tclean::::casa ########################################## 2026-03-05 01:47:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:47:48 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 ) 2026-03-05 01:47:48 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:47:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:47:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:47:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:47:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:47:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:47:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:47:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:47:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:47:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:47:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:47:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:47:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:47:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024154 2026-03-05 01:47:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:47:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:47:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:47:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:47:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:47:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:47:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:47:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:47:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:47:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:47:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:47:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:47:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:47:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:47:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:47:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:47:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:47:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:47:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:47:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:47:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:47:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:47:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:47:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:47:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:47:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:47:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:47:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:47:57 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:47:57 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:47:57 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:47:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:47:58 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:47:59 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:47:48.219567 End time: 2026-03-05 01:47:58.933361 2026-03-05 01:47:59 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:47:59 INFO tclean::::casa ########################################## 2026-03-05 01:47:59 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:47:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:59 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:47:59 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:47:59 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:47:59 2026****** 2026-03-05 01:47:59 INFO ImageFitter::fit+ 2026-03-05 01:47:59 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:47:59 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:47:59 INFO ImageFitter::fit+ --- region: 2026-03-05 01:47:59 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:47:59 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:47:59 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:47:59 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:47:59 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:47:59 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:47:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:59 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:47:59 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:47:59 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:47:59 INFO imstat::::casa ########################################## 2026-03-05 01:47:59 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:47:59 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:47:59 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:47:59 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:47:59 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:47:59 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:47:59 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:47:59 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:47:59 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:47:59 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:47:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:47:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:47:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:47:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:47:59 INFO imstat:::: Values --- 2026-03-05 01:47:59 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:47:59 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:47:59 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:47:59 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-03-05 01:47:59 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:47:59 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:47:59 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:47:59 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:47:59 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:47:59 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:47:59 INFO imstat:::: Statistics --- 2026-03-05 01:47:59 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:47:59 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:47:59 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:47:59 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:47:59 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-03-05 01:47:59 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-03-05 01:47:59 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-03-05 01:47:59 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-03-05 01:47:59 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-03-05 01:47:59 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:47:59 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:47:59 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:47:59 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:47:59 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:47:59 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:47:59 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 2026-03-05 01:47:59 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:47:58.988399 End time: 2026-03-05 01:47:59.020267 2026-03-05 01:47:59 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:47:59 INFO imstat::::casa ########################################## 2026-03-05 01:47:59 INFO phaseshift::::casa ########################################## 2026-03-05 01:47:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:47:59 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 0.110875644rad' ) 2026-03-05 01:47:59 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:47:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:47:59 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:47:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:47:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:47:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:47:59 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:47:59 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:47:59 INFO MSTransformManager::open Select data 2026-03-05 01:47:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:48:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:48:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 0.110875644rad' successfully parsed 2026-03-05 01:48:02 INFO phaseshift::::casa Shift phase center 2026-03-05 01:48:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:48:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:47:59.033707 End time: 2026-03-05 01:48:03.314205 2026-03-05 01:48:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:48:03 INFO phaseshift::::casa ########################################## 2026-03-05 01:48:03 INFO tclean::::casa ########################################## 2026-03-05 01:48:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:48:03 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 ) 2026-03-05 01:48:03 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:48:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:48:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:48:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:48:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:48:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:48:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:48:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:48:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:48:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:48:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:48:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:48:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:48:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022078 2026-03-05 01:48:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:48:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:48:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:48:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:48:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:48:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:48:06 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:48:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:48:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:48:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:48:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:48:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:48:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:48:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:48:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:48:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:48:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:48:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:48:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:48:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:48:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:48:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:48:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:48:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:48:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:48:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:48:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:48:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:48:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:48:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:48:12 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:48:13 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:48:14 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:48:03.347197 End time: 2026-03-05 01:48:13.979833 2026-03-05 01:48:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:48:14 INFO tclean::::casa ########################################## 2026-03-05 01:48:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:48:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:48:14 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:48:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:48:14 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:48:14 2026****** 2026-03-05 01:48:14 INFO ImageFitter::fit+ 2026-03-05 01:48:14 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:48:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:48:14 INFO ImageFitter::fit+ --- region: 2026-03-05 01:48:14 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:48:14 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:48:14 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:48:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:48:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:48:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:48:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:48:14 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:48:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:48:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:48:14 INFO imstat::::casa ########################################## 2026-03-05 01:48:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:48:14 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:48:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:48:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:48:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:48:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:48:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:48:14 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:48:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:48:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:48:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:48:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:48:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:48:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:48:14 INFO imstat:::: Values --- 2026-03-05 01:48:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:48:14 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:48:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:48:14 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-03-05 01:48:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:48:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:48:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:48:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-03-05 01:48:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:48:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:48:14 INFO imstat:::: Statistics --- 2026-03-05 01:48:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:48:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:48:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:48:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:48:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-03-05 01:48:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-03-05 01:48:14 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-03-05 01:48:14 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-03-05 01:48:14 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-03-05 01:48:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:48:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:48:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:48:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:48:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:48:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:48:14 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 2026-03-05 01:48:14 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:48:14.036958 End time: 2026-03-05 01:48:14.066319 2026-03-05 01:48:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:48:14 INFO imstat::::casa ########################################## 2026-03-05 01:48:14 INFO phaseshift::::casa ########################################## 2026-03-05 01:48:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:48:14 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg +006d21m09.7433' ) 2026-03-05 01:48:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:48:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:48:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:48:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:48:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:48:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:48:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:48:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:48:14 INFO MSTransformManager::open Select data 2026-03-05 01:48:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:48:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:48:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg +006d21m09.7433' successfully parsed 2026-03-05 01:48:17 INFO phaseshift::::casa Shift phase center 2026-03-05 01:48:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:48:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:48:14.079089 End time: 2026-03-05 01:48:17.950292 2026-03-05 01:48:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:48:18 INFO phaseshift::::casa ########################################## 2026-03-05 01:48:18 INFO tclean::::casa ########################################## 2026-03-05 01:48:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:48:18 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 ) 2026-03-05 01:48:18 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:48:18 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:48:18 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:48:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:48:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:48:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:48:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:48:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:48:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:48:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:48:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:48:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:48:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:48:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022644 2026-03-05 01:48:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:48:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:48:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:48:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:48:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:48:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:48:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:48:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:48:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:48:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:48:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:48:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:48:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:48:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:48:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:48:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:48:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:48:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:48:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:48:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:48:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:48:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:48:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:48:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:48:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:48:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:48:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:48:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:48:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:48:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:48:28 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:48:28 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:48:29 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:48:17.980822 End time: 2026-03-05 01:48:29.171187 2026-03-05 01:48:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:48:29 INFO tclean::::casa ########################################## 2026-03-05 01:48:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:48:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:48:29 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) 2026-03-05 01:48:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:48:29 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:48:29 2026****** 2026-03-05 01:48:29 INFO ImageFitter::fit+ 2026-03-05 01:48:29 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:48:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:48:29 INFO ImageFitter::fit+ --- region: 2026-03-05 01:48:29 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:48:29 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:48:29 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:48:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:48:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:48:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:48:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:48:29 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:48:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116867 Jy 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126483 Jy 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:48:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:48:29 INFO imstat::::casa ########################################## 2026-03-05 01:48:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:48:29 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 ) 2026-03-05 01:48:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:48:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:48:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:48:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:48:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:48:29 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) 2026-03-05 01:48:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:48:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:48:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:48:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:48:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:48:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:48:29 INFO imstat:::: Values --- 2026-03-05 01:48:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:48:29 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:48:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:48:29 INFO imstat:::: -- minimum value [min]: -7.77768e-05 Jy/beam 2026-03-05 01:48:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:48:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:48:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:48:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:48:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:48:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:48:29 INFO imstat:::: Statistics --- 2026-03-05 01:48:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:48:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:48:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:48:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:48:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-03-05 01:48:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73609e-05 Jy/beam 2026-03-05 01:48:29 INFO imstat:::: -- IQR [quartile]: 3.56013e-05 Jy/beam 2026-03-05 01:48:29 INFO imstat:::: -- First quartile [q1]: -3.4507e-05 Jy/beam 2026-03-05 01:48:29 INFO imstat:::: -- Third quartile [q3]: 1.09435e-06 Jy/beam 2026-03-05 01:48:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:48:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:48:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:48:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:48:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:48:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:48:29 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 2026-03-05 01:48:29 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:48:29.227749 End time: 2026-03-05 01:48:29.249403 2026-03-05 01:48:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:48:29 INFO imstat::::casa ########################################## 2026-03-05 01:48:29 INFO phaseshift::::casa ########################################## 2026-03-05 01:48:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:48:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 00:25:24.6496' ) 2026-03-05 01:48:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:48:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:48:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:48:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:48:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:48:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:48:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:48:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:48:29 INFO MSTransformManager::open Select data 2026-03-05 01:48:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:48:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-03-05 01:48:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 00:25:24.6496' successfully parsed 2026-03-05 01:48:32 INFO phaseshift::::casa Shift phase center 2026-03-05 01:48:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:48:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:48:29.262390 End time: 2026-03-05 01:48:32.843496 2026-03-05 01:48:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:48:33 INFO phaseshift::::casa ########################################## 2026-03-05 01:48:33 INFO tclean::::casa ########################################## 2026-03-05 01:48:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:48:33 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 ) 2026-03-05 01:48:33 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:48:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:48:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:48:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:48:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:48:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:48:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:48:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:48:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:48:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:48:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:48:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:48:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:48:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024043 2026-03-05 01:48:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:48:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:48:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:48:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:48:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:48:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:48:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:48:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:48:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:48:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:48:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:48:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:48:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:48:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:48:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:48:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:48:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:48:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:48:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:48:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:48:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:48:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:48:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:48:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:48:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:48:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:48:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:48:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:48:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:48:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:48:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:48:43 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:48:44 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:48:32.875778 End time: 2026-03-05 01:48:43.813575 2026-03-05 01:48:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:48:44 INFO tclean::::casa ########################################## 2026-03-05 01:48:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:48:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:48:44 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) 2026-03-05 01:48:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:48:44 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:48:44 2026****** 2026-03-05 01:48:44 INFO ImageFitter::fit+ 2026-03-05 01:48:44 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:48:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:48:44 INFO ImageFitter::fit+ --- region: 2026-03-05 01:48:44 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:48:44 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:48:44 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:48:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:48:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:48:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:48:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:48:44 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) 2026-03-05 01:48:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116903 Jy 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126517 Jy 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:48:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:48:44 INFO imstat::::casa ########################################## 2026-03-05 01:48:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:48:44 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 ) 2026-03-05 01:48:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:48:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:48:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:48:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:48:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:48:44 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) 2026-03-05 01:48:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:48:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:48:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:48:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:48:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-03-05 01:48:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-03-05 01:48:44 INFO imstat:::: Values --- 2026-03-05 01:48:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:48:44 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:48:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:48:44 INFO imstat:::: -- minimum value [min]: -7.78731e-05 Jy/beam 2026-03-05 01:48:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:48:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:48:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:48:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:48:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:48:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:48:44 INFO imstat:::: Statistics --- 2026-03-05 01:48:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:48:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:48:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:48:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:48:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86503e-05 Jy/beam 2026-03-05 01:48:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73798e-05 Jy/beam 2026-03-05 01:48:44 INFO imstat:::: -- IQR [quartile]: 3.56966e-05 Jy/beam 2026-03-05 01:48:44 INFO imstat:::: -- First quartile [q1]: -3.45352e-05 Jy/beam 2026-03-05 01:48:44 INFO imstat:::: -- Third quartile [q3]: 1.16146e-06 Jy/beam 2026-03-05 01:48:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:48:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:48:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:48:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:48:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:48:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:48:44 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 2026-03-05 01:48:44 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:48:43.869343 End time: 2026-03-05 01:48:43.891287 2026-03-05 01:48:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:48:44 INFO imstat::::casa ########################################## 2026-03-05 01:48:44 INFO phaseshift::::casa ########################################## 2026-03-05 01:48:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:48:44 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 6.352706472deg' ) 2026-03-05 01:48:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:48:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:48:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:48:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:48:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:48:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:48:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:48:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:48:44 INFO MSTransformManager::open Select data 2026-03-05 01:48:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:48:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:48:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 6.352706472deg' successfully parsed 2026-03-05 01:48:47 INFO phaseshift::::casa Shift phase center 2026-03-05 01:48:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:48:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:48:43.904982 End time: 2026-03-05 01:48:47.512047 2026-03-05 01:48:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:48:48 INFO phaseshift::::casa ########################################## 2026-03-05 01:48:48 INFO tclean::::casa ########################################## 2026-03-05 01:48:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:48:48 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 ) 2026-03-05 01:48:48 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:48:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:48:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:48:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:48:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:48:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:48:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:48:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:48:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:48:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:48:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:48:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:48:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:48:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022088 2026-03-05 01:48:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:48:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:48:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:48:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:48:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:48:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:48:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:48:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:48:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:48:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:48:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:48:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:48:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:48:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:48:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:48:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:48:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:48:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:48:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:48:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:48:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:48:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:48:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:48:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:48:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:48:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:48:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:48:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:48:57 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:48:57 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:48:57 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:48:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:48:58 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:48:59 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:48:47.544452 End time: 2026-03-05 01:48:58.667913 2026-03-05 01:48:59 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:48:59 INFO tclean::::casa ########################################## 2026-03-05 01:48:59 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:48:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:48:59 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:48:59 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:48:59 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:48:59 2026****** 2026-03-05 01:48:59 INFO ImageFitter::fit+ 2026-03-05 01:48:59 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:48:59 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:48:59 INFO ImageFitter::fit+ --- region: 2026-03-05 01:48:59 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:48:59 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:48:59 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:48:59 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:48:59 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:48:59 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:48:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:48:59 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:48:59 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011687 Jy 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:48:59 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:48:59 INFO imstat::::casa ########################################## 2026-03-05 01:48:59 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:48:59 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:48:59 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:48:59 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:48:59 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:48:59 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:48:59 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:48:59 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:48:59 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:48:59 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:48:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:48:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:48:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:48:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:48:59 INFO imstat:::: Values --- 2026-03-05 01:48:59 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:48:59 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:48:59 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:48:59 INFO imstat:::: -- minimum value [min]: -7.77771e-05 Jy/beam 2026-03-05 01:48:59 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:48:59 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:48:59 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:48:59 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:48:59 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:48:59 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:48:59 INFO imstat:::: Statistics --- 2026-03-05 01:48:59 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:48:59 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:48:59 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:48:59 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:48:59 INFO imstat:::: -- Median of the pixel values [median]: -1.86715e-05 Jy/beam 2026-03-05 01:48:59 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73619e-05 Jy/beam 2026-03-05 01:48:59 INFO imstat:::: -- IQR [quartile]: 3.56021e-05 Jy/beam 2026-03-05 01:48:59 INFO imstat:::: -- First quartile [q1]: -3.45061e-05 Jy/beam 2026-03-05 01:48:59 INFO imstat:::: -- Third quartile [q3]: 1.09605e-06 Jy/beam 2026-03-05 01:48:59 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:48:59 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:48:59 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:48:59 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:48:59 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:48:59 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:48:59 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 2026-03-05 01:48:59 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:48:58.730756 End time: 2026-03-05 01:48:58.751138 2026-03-05 01:48:59 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:48:59 INFO imstat::::casa ########################################## 2026-03-05 01:48:59 INFO phaseshift::::casa ########################################## 2026-03-05 01:48:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:48:59 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 0.110875644rad' ) 2026-03-05 01:48:59 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:48:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:48:59 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:48:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:48:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:48:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:48:59 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:48:59 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:48:59 INFO MSTransformManager::open Select data 2026-03-05 01:48:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:49:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:49:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 0.110875644rad' successfully parsed 2026-03-05 01:49:02 INFO phaseshift::::casa Shift phase center 2026-03-05 01:49:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:49:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:48:58.764571 End time: 2026-03-05 01:49:02.868117 2026-03-05 01:49:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:49:03 INFO phaseshift::::casa ########################################## 2026-03-05 01:49:03 INFO tclean::::casa ########################################## 2026-03-05 01:49:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:49:03 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 ) 2026-03-05 01:49:03 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:49:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:49:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:49:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:49:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:49:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:49:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:49:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:49:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:49:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:49:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:49:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:49:04 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:49:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020868 2026-03-05 01:49:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:49:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:49:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:49:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:49:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:49:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:49:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:49:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:49:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:49:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:49:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:49:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:49:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:49:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:49:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:49:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:49:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:49:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:49:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:49:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:49:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:49:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:49:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:49:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:49:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:49:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:49:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:49:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:49:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:49:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:49:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:49:13 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:49:15 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:49:02.900178 End time: 2026-03-05 01:49:14.572528 2026-03-05 01:49:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:49:15 INFO tclean::::casa ########################################## 2026-03-05 01:49:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:49:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:49:15 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:49:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:49:15 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:49:15 2026****** 2026-03-05 01:49:15 INFO ImageFitter::fit+ 2026-03-05 01:49:15 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:49:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:49:15 INFO ImageFitter::fit+ --- region: 2026-03-05 01:49:15 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:49:15 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:49:15 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:49:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:49:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:49:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:49:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:49:15 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:49:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126482 Jy 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:49:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:49:15 INFO imstat::::casa ########################################## 2026-03-05 01:49:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:49:15 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:49:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:49:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:49:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:49:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:49:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:49:15 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:49:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:49:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:49:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:49:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:49:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:49:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:49:15 INFO imstat:::: Values --- 2026-03-05 01:49:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:49:15 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:49:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:49:15 INFO imstat:::: -- minimum value [min]: -7.77855e-05 Jy/beam 2026-03-05 01:49:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:49:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:49:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:49:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-03-05 01:49:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:49:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:49:15 INFO imstat:::: Statistics --- 2026-03-05 01:49:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:49:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:49:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:49:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:49:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86732e-05 Jy/beam 2026-03-05 01:49:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73562e-05 Jy/beam 2026-03-05 01:49:15 INFO imstat:::: -- IQR [quartile]: 3.56008e-05 Jy/beam 2026-03-05 01:49:15 INFO imstat:::: -- First quartile [q1]: -3.45107e-05 Jy/beam 2026-03-05 01:49:15 INFO imstat:::: -- Third quartile [q3]: 1.09015e-06 Jy/beam 2026-03-05 01:49:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:49:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:49:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:49:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:49:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:49:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:49:15 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 2026-03-05 01:49:15 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:49:14.626433 End time: 2026-03-05 01:49:14.646026 2026-03-05 01:49:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:49:15 INFO imstat::::casa ########################################## 2026-03-05 01:49:15 INFO phaseshift::::casa ########################################## 2026-03-05 01:49:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:49:15 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 1.310562834rad +006d21m09.7433' ) 2026-03-05 01:49:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:49:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:49:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:49:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:49:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:49:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:49:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:49:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:49:15 INFO MSTransformManager::open Select data 2026-03-05 01:49:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:49:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:49:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad +006d21m09.7433' successfully parsed 2026-03-05 01:49:17 INFO phaseshift::::casa Shift phase center 2026-03-05 01:49:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:49:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:49:14.658964 End time: 2026-03-05 01:49:18.183422 2026-03-05 01:49:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:49:18 INFO phaseshift::::casa ########################################## 2026-03-05 01:49:18 INFO tclean::::casa ########################################## 2026-03-05 01:49:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:49:18 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 ) 2026-03-05 01:49:18 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:49:18 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:49:18 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:49:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:49:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:49:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:49:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:49:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:49:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:49:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:49:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:49:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:49:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:49:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022078 2026-03-05 01:49:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:49:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:49:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:49:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:49:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:49:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:49:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:49:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:49:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:49:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:49:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:49:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:49:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:49:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:49:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:49:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:49:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:49:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:49:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:49:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:49:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:49:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:49:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:49:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:49:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:49:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:49:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:49:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:49:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:49:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:49:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:49:27 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:49:29 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:49:18.214038 End time: 2026-03-05 01:49:28.708862 2026-03-05 01:49:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:49:29 INFO tclean::::casa ########################################## 2026-03-05 01:49:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:49:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:49:29 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) 2026-03-05 01:49:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:49:29 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:49:29 2026****** 2026-03-05 01:49:29 INFO ImageFitter::fit+ 2026-03-05 01:49:29 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:49:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:49:29 INFO ImageFitter::fit+ --- region: 2026-03-05 01:49:29 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:49:29 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:49:29 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:49:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:49:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:49:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:49:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:49:29 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:49:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:49:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:49:29 INFO imstat::::casa ########################################## 2026-03-05 01:49:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:49:29 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 ) 2026-03-05 01:49:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:49:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:49:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:49:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:49:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:49:29 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) 2026-03-05 01:49:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:49:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:49:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:49:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:49:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:49:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:49:29 INFO imstat:::: Values --- 2026-03-05 01:49:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:49:29 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:49:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:49:29 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-03-05 01:49:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:49:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:49:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:49:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:49:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:49:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:49:29 INFO imstat:::: Statistics --- 2026-03-05 01:49:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:49:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:49:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:49:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:49:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86669e-05 Jy/beam 2026-03-05 01:49:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73635e-05 Jy/beam 2026-03-05 01:49:29 INFO imstat:::: -- IQR [quartile]: 3.56081e-05 Jy/beam 2026-03-05 01:49:29 INFO imstat:::: -- First quartile [q1]: -3.45085e-05 Jy/beam 2026-03-05 01:49:29 INFO imstat:::: -- Third quartile [q3]: 1.09959e-06 Jy/beam 2026-03-05 01:49:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:49:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:49:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:49:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:49:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:49:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:49:29 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 2026-03-05 01:49:29 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:49:28.766428 End time: 2026-03-05 01:49:28.789658 2026-03-05 01:49:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:49:29 INFO imstat::::casa ########################################## 2026-03-05 01:49:29 INFO phaseshift::::casa ########################################## 2026-03-05 01:49:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:49:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 00:25:24.6496' ) 2026-03-05 01:49:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:49:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:49:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:49:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:49:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:49:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:49:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:49:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:49:29 INFO MSTransformManager::open Select data 2026-03-05 01:49:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:49:31 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-03-05 01:49:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 00:25:24.6496' successfully parsed 2026-03-05 01:49:31 INFO phaseshift::::casa Shift phase center 2026-03-05 01:49:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:49:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:49:28.805406 End time: 2026-03-05 01:49:32.000409 2026-03-05 01:49:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:49:32 INFO phaseshift::::casa ########################################## 2026-03-05 01:49:32 INFO tclean::::casa ########################################## 2026-03-05 01:49:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:49:32 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 ) 2026-03-05 01:49:32 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:49:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:49:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:49:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:49:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:49:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:49:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:49:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:49:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:49:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:49:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:49:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:49:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:49:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021544 2026-03-05 01:49:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:49:33 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:49:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:49:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:49:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:49:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:49:35 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:49:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:49:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:49:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:49:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:49:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:49:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:49:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:49:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:49:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:49:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:49:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:49:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:49:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:49:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:49:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:49:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:49:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:49:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:49:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:49:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:49:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:49:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:49:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:49:41 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:49:41 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:49:42 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:49:32.033151 End time: 2026-03-05 01:49:42.489793 2026-03-05 01:49:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:49:42 INFO tclean::::casa ########################################## 2026-03-05 01:49:43 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:49:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:49:43 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) 2026-03-05 01:49:43 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:49:43 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:49:43 2026****** 2026-03-05 01:49:43 INFO ImageFitter::fit+ 2026-03-05 01:49:43 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:49:43 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:49:43 INFO ImageFitter::fit+ --- region: 2026-03-05 01:49:43 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:49:43 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:49:43 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:49:43 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:49:43 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:49:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:49:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:49:43 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) 2026-03-05 01:49:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116905 Jy 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000041 +/- 0.000777 arcsec 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- ra: 127.999941 +/- 0.000127 pixels 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- dec: 127.999954 +/- 0.000097 pixels 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:49:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:49:43 INFO imstat::::casa ########################################## 2026-03-05 01:49:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:49:43 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 ) 2026-03-05 01:49:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:49:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:49:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:49:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:49:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:49:43 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) 2026-03-05 01:49:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:49:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:49:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:49:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:49:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-03-05 01:49:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-03-05 01:49:43 INFO imstat:::: Values --- 2026-03-05 01:49:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:49:43 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:49:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:49:43 INFO imstat:::: -- minimum value [min]: -7.78774e-05 Jy/beam 2026-03-05 01:49:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:49:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:49:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:49:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:49:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:49:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:49:43 INFO imstat:::: Statistics --- 2026-03-05 01:49:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:49:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:49:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:49:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:49:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86532e-05 Jy/beam 2026-03-05 01:49:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73779e-05 Jy/beam 2026-03-05 01:49:43 INFO imstat:::: -- IQR [quartile]: 3.5701e-05 Jy/beam 2026-03-05 01:49:43 INFO imstat:::: -- First quartile [q1]: -3.45356e-05 Jy/beam 2026-03-05 01:49:43 INFO imstat:::: -- Third quartile [q3]: 1.16544e-06 Jy/beam 2026-03-05 01:49:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:49:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:49:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:49:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:49:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:49:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:49:43 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 2026-03-05 01:49:43 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:49:42.546458 End time: 2026-03-05 01:49:42.568127 2026-03-05 01:49:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:49:43 INFO imstat::::casa ########################################## 2026-03-05 01:49:43 INFO phaseshift::::casa ########################################## 2026-03-05 01:49:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:49:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 6.352706472deg' ) 2026-03-05 01:49:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:49:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:49:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:49:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:49:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:49:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:49:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:49:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:49:43 INFO MSTransformManager::open Select data 2026-03-05 01:49:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:49:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:49:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 6.352706472deg' successfully parsed 2026-03-05 01:49:45 INFO phaseshift::::casa Shift phase center 2026-03-05 01:49:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:49:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:49:42.582004 End time: 2026-03-05 01:49:46.380010 2026-03-05 01:49:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:49:46 INFO phaseshift::::casa ########################################## 2026-03-05 01:49:46 INFO tclean::::casa ########################################## 2026-03-05 01:49:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:49:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-03-05 01:49:46 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:49:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:49:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:49:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:49:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:49:47 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:49:47 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:49:47 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:49:47 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:49:47 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:49:47 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:49:47 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:49:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:49:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021701 2026-03-05 01:49:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:49:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:49:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:49:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:49:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:49:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:49:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:49:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:49:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:49:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:49:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:49:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:49:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:49:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:49:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:49:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:49:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:49:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:49:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:49:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:49:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:49:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:49:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:49:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:49:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:49:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:49:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:49:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:49:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:49:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:49:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:49:55 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:49:56 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:49:57 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:49:46.412806 End time: 2026-03-05 01:49:56.666344 2026-03-05 01:49:57 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:49:57 INFO tclean::::casa ########################################## 2026-03-05 01:49:57 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:49:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:49:57 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:49:57 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:49:57 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:49:57 2026****** 2026-03-05 01:49:57 INFO ImageFitter::fit+ 2026-03-05 01:49:57 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:49:57 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:49:57 INFO ImageFitter::fit+ --- region: 2026-03-05 01:49:57 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:49:57 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:49:57 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:49:57 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:49:57 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:49:57 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:49:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:49:57 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:49:57 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:49:57 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:49:57 INFO imstat::::casa ########################################## 2026-03-05 01:49:57 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:49:57 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:49:57 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:49:57 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:49:57 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:49:57 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:49:57 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:49:57 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:49:57 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:49:57 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:49:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:49:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:49:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:49:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:49:57 INFO imstat:::: Values --- 2026-03-05 01:49:57 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:49:57 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:49:57 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:49:57 INFO imstat:::: -- minimum value [min]: -7.77798e-05 Jy/beam 2026-03-05 01:49:57 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:49:57 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:49:57 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:49:57 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:49:57 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:49:57 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:49:57 INFO imstat:::: Statistics --- 2026-03-05 01:49:57 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:49:57 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:49:57 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:49:57 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:49:57 INFO imstat:::: -- Median of the pixel values [median]: -1.86675e-05 Jy/beam 2026-03-05 01:49:57 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73645e-05 Jy/beam 2026-03-05 01:49:57 INFO imstat:::: -- IQR [quartile]: 3.56077e-05 Jy/beam 2026-03-05 01:49:57 INFO imstat:::: -- First quartile [q1]: -3.45073e-05 Jy/beam 2026-03-05 01:49:57 INFO imstat:::: -- Third quartile [q3]: 1.1004e-06 Jy/beam 2026-03-05 01:49:57 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:49:57 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:49:57 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:49:57 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:49:57 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:49:57 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:49:57 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 2026-03-05 01:49:57 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:49:56.731398 End time: 2026-03-05 01:49:56.752077 2026-03-05 01:49:57 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:49:57 INFO imstat::::casa ########################################## 2026-03-05 01:49:57 INFO phaseshift::::casa ########################################## 2026-03-05 01:49:57 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:49:57 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 0.110875644rad' ) 2026-03-05 01:49:57 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:49:57 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:49:57 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:49:57 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:49:57 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:49:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:49:57 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:49:57 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:49:57 INFO MSTransformManager::open Select data 2026-03-05 01:49:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:49:59 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:49:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 0.110875644rad' successfully parsed 2026-03-05 01:49:59 INFO phaseshift::::casa Shift phase center 2026-03-05 01:50:00 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:50:00 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:49:56.765771 End time: 2026-03-05 01:50:00.028031 2026-03-05 01:50:00 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:50:00 INFO phaseshift::::casa ########################################## 2026-03-05 01:50:00 INFO tclean::::casa ########################################## 2026-03-05 01:50:00 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:50:00 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-03-05 01:50:00 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:50:00 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:50:00 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:50:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:50:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:50:00 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:50:00 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:50:00 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:50:00 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:50:00 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:50:00 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:50:00 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:50:01 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:50:01 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02261 2026-03-05 01:50:01 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:50:01 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:50:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:50:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:50:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:50:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:50:03 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:50:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:50:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:50:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:50:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:50:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:50:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:50:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:50:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:50:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:50:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:50:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:50:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:50:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:50:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:50:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:50:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:50:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:50:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:50:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:50:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:50:08 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:50:08 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:50:08 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:50:09 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:50:09 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:50:11 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:50:00.058747 End time: 2026-03-05 01:50:10.556235 2026-03-05 01:50:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:50:11 INFO tclean::::casa ########################################## 2026-03-05 01:50:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:50:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:50:11 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:50:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:50:11 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:50:11 2026****** 2026-03-05 01:50:11 INFO ImageFitter::fit+ 2026-03-05 01:50:11 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:50:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:50:11 INFO ImageFitter::fit+ --- region: 2026-03-05 01:50:11 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:50:11 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:50:11 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:50:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:50:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:50:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:50:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:50:11 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:50:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000002 +/- 0.000777 arcsec 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- ra: 128.000014 +/- 0.000127 pixels 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- dec: 127.999998 +/- 0.000097 pixels 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:50:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:50:11 INFO imstat::::casa ########################################## 2026-03-05 01:50:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:50:11 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:50:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:50:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:50:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:50:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:50:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:50:11 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:50:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:50:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:50:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:50:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:50:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:50:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:50:11 INFO imstat:::: Values --- 2026-03-05 01:50:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:50:11 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:50:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:50:11 INFO imstat:::: -- minimum value [min]: -7.77816e-05 Jy/beam 2026-03-05 01:50:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:50:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:50:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:50:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-03-05 01:50:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:50:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:50:11 INFO imstat:::: Statistics --- 2026-03-05 01:50:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:50:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:50:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:50:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:50:11 INFO imstat:::: -- Median of the pixel values [median]: -1.8676e-05 Jy/beam 2026-03-05 01:50:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73584e-05 Jy/beam 2026-03-05 01:50:11 INFO imstat:::: -- IQR [quartile]: 3.56038e-05 Jy/beam 2026-03-05 01:50:11 INFO imstat:::: -- First quartile [q1]: -3.45104e-05 Jy/beam 2026-03-05 01:50:11 INFO imstat:::: -- Third quartile [q3]: 1.09331e-06 Jy/beam 2026-03-05 01:50:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:50:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:50:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:50:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:50:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:50:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:50:11 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 2026-03-05 01:50:11 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:50:10.610694 End time: 2026-03-05 01:50:10.631551 2026-03-05 01:50:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:50:11 INFO imstat::::casa ########################################## 2026-03-05 01:50:11 INFO phaseshift::::casa ########################################## 2026-03-05 01:50:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:50:11 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39d58m05.8512' ) 2026-03-05 01:50:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:50:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:50:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:50:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:50:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:50:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:50:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:50:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:50:11 INFO MSTransformManager::open Select data 2026-03-05 01:50:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:50:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:50:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39d58m05.8512' successfully parsed 2026-03-05 01:50:14 INFO phaseshift::::casa Shift phase center 2026-03-05 01:50:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:50:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:50:10.644597 End time: 2026-03-05 01:50:14.652847 2026-03-05 01:50:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:50:15 INFO phaseshift::::casa ########################################## 2026-03-05 01:50:15 INFO tclean::::casa ########################################## 2026-03-05 01:50:15 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:50:15 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-03-05 01:50:15 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:50:15 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:50:15 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:50:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:50:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:50:15 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:50:15 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:50:15 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:50:15 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:50:15 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:50:15 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:50:15 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:50:16 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:50:16 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02495 2026-03-05 01:50:16 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:50:16 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:50:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:50:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:50:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:50:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:50:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:50:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:50:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:50:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:50:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:50:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:50:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:50:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:50:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:50:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:50:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:50:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:50:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:50:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:50:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:50:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:50:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:50:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:50:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:50:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:50:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:50:23 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:50:23 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:50:23 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:50:24 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:50:25 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:50:26 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:50:14.683170 End time: 2026-03-05 01:50:25.687134 2026-03-05 01:50:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:50:26 INFO tclean::::casa ########################################## 2026-03-05 01:50:26 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:50:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:50:26 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:50:26 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:50:26 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:50:26 2026****** 2026-03-05 01:50:26 INFO ImageFitter::fit+ 2026-03-05 01:50:26 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:50:26 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:50:26 INFO ImageFitter::fit+ --- region: 2026-03-05 01:50:26 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:50:26 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:50:26 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:50:26 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:50:26 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:50:26 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:50:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:50:26 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:50:26 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:50:26 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:50:26 INFO imstat::::casa ########################################## 2026-03-05 01:50:26 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:50:26 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:50:26 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:50:26 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:50:26 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:50:26 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:50:26 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:50:26 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:50:26 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:50:26 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:50:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:50:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:50:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:50:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:50:26 INFO imstat:::: Values --- 2026-03-05 01:50:26 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:50:26 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:50:26 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:50:26 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-03-05 01:50:26 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:50:26 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:50:26 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:50:26 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:50:26 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:50:26 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:50:26 INFO imstat:::: Statistics --- 2026-03-05 01:50:26 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:50:26 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:50:26 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:50:26 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:50:26 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-03-05 01:50:26 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-03-05 01:50:26 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-03-05 01:50:26 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-03-05 01:50:26 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-03-05 01:50:26 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:50:26 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:50:26 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:50:26 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:50:26 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:50:26 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:50:26 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 2026-03-05 01:50:26 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:50:25.745306 End time: 2026-03-05 01:50:25.769171 2026-03-05 01:50:26 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:50:26 INFO imstat::::casa ########################################## 2026-03-05 01:50:26 INFO phaseshift::::casa ########################################## 2026-03-05 01:50:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:50:26 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 02:39:52.3901' ) 2026-03-05 01:50:26 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:50:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:50:26 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:50:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:50:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:50:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:50:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:50:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:50:26 INFO MSTransformManager::open Select data 2026-03-05 01:50:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:50:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-03-05 01:50:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 02:39:52.3901' successfully parsed 2026-03-05 01:50:28 INFO phaseshift::::casa Shift phase center 2026-03-05 01:50:29 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:50:29 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:50:25.782640 End time: 2026-03-05 01:50:29.327039 2026-03-05 01:50:29 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:50:29 INFO phaseshift::::casa ########################################## 2026-03-05 01:50:29 INFO tclean::::casa ########################################## 2026-03-05 01:50:29 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:50:29 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-03-05 01:50:29 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:50:29 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:50:29 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:50:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:50:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:50:29 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:50:29 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:50:29 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:50:29 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:50:29 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:50:29 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:50:29 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:50:31 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:50:31 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020962 2026-03-05 01:50:31 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:50:31 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:50:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:50:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:50:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:50:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:50:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:50:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:50:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:50:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:50:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:50:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:50:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:50:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:50:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:50:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:50:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:50:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:50:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:50:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:50:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:50:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:50:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:50:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:50:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:50:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:50:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:50:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:50:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:50:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:50:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:50:39 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:50:40 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:50:29.357171 End time: 2026-03-05 01:50:40.391935 2026-03-05 01:50:40 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:50:40 INFO tclean::::casa ########################################## 2026-03-05 01:50:40 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:50:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:50:40 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) 2026-03-05 01:50:40 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:50:40 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:50:40 2026****** 2026-03-05 01:50:40 INFO ImageFitter::fit+ 2026-03-05 01:50:40 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:50:40 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:50:40 INFO ImageFitter::fit+ --- region: 2026-03-05 01:50:40 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:50:40 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:50:40 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:50:40 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:50:40 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:50:40 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:50:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:50:40 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) 2026-03-05 01:50:40 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:50:40 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:50:40 INFO imstat::::casa ########################################## 2026-03-05 01:50:40 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:50:40 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 ) 2026-03-05 01:50:40 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:50:40 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:50:40 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:50:40 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:50:40 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:50:40 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) 2026-03-05 01:50:40 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:50:40 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:50:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:50:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:50:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-03-05 01:50:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-03-05 01:50:40 INFO imstat:::: Values --- 2026-03-05 01:50:40 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:50:40 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:50:40 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:50:40 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-03-05 01:50:40 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:50:40 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:50:40 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:50:40 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:50:40 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:50:40 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:50:40 INFO imstat:::: Statistics --- 2026-03-05 01:50:40 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:50:40 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:50:40 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:50:40 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:50:40 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-03-05 01:50:40 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-03-05 01:50:40 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-03-05 01:50:40 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-03-05 01:50:40 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-03-05 01:50:40 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:50:40 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:50:40 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:50:40 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:50:40 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:50:40 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:50:40 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 2026-03-05 01:50:40 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:50:40.452072 End time: 2026-03-05 01:50:40.476852 2026-03-05 01:50:40 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:50:40 INFO imstat::::casa ########################################## 2026-03-05 01:50:40 INFO phaseshift::::casa ########################################## 2026-03-05 01:50:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:50:40 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39.968292000deg' ) 2026-03-05 01:50:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:50:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:50:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:50:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:50:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:50:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:50:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:50:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:50:41 INFO MSTransformManager::open Select data 2026-03-05 01:50:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:50:43 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:50:43 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39.968292000deg' successfully parsed 2026-03-05 01:50:43 INFO phaseshift::::casa Shift phase center 2026-03-05 01:50:44 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:50:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:50:40.491709 End time: 2026-03-05 01:50:44.339859 2026-03-05 01:50:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:50:44 INFO phaseshift::::casa ########################################## 2026-03-05 01:50:44 INFO tclean::::casa ########################################## 2026-03-05 01:50:44 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:50:44 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 ) 2026-03-05 01:50:44 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:50:44 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:50:44 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:50:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:50:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:50:44 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:50:44 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:50:44 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:50:44 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:50:44 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:50:44 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:50:44 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:50:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:50:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023316 2026-03-05 01:50:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:50:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:50:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:50:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:50:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:50:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:50:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:50:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:50:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:50:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:50:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:50:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:50:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:50:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:50:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:50:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:50:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:50:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:50:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:50:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:50:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:50:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:50:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:50:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:50:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:50:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:50:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:50:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:50:54 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:50:54 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:50:54 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:50:55 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:50:55 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:50:56 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:50:44.369932 End time: 2026-03-05 01:50:55.928139 2026-03-05 01:50:56 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:50:56 INFO tclean::::casa ########################################## 2026-03-05 01:50:56 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:50:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:50:56 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:50:56 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:50:56 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:50:56 2026****** 2026-03-05 01:50:56 INFO ImageFitter::fit+ 2026-03-05 01:50:56 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:50:56 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:50:56 INFO ImageFitter::fit+ --- region: 2026-03-05 01:50:56 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:50:56 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:50:56 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:50:56 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:50:56 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:50:56 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:50:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:50:56 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:50:56 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:50:56 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:50:56 INFO imstat::::casa ########################################## 2026-03-05 01:50:56 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:50:56 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:50:56 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:50:56 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:50:56 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:50:56 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:50:56 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:50:56 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:50:56 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:50:56 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:50:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:50:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:50:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:50:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:50:56 INFO imstat:::: Values --- 2026-03-05 01:50:56 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:50:56 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:50:56 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:50:56 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-03-05 01:50:56 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:50:56 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:50:56 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:50:56 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:50:56 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:50:56 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:50:56 INFO imstat:::: Statistics --- 2026-03-05 01:50:56 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:50:56 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:50:56 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:50:56 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:50:56 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-03-05 01:50:56 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-03-05 01:50:56 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-03-05 01:50:56 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-03-05 01:50:56 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-03-05 01:50:56 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:50:56 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:50:56 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:50:56 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:50:56 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:50:56 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:50:56 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 2026-03-05 01:50:56 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:50:55.987574 End time: 2026-03-05 01:50:56.009418 2026-03-05 01:50:56 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:50:56 INFO imstat::::casa ########################################## 2026-03-05 01:50:56 INFO phaseshift::::casa ########################################## 2026-03-05 01:50:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:50:56 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 0.697578292rad' ) 2026-03-05 01:50:56 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:50:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:50:56 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:50:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:50:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:50:56 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:50:56 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:50:56 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:50:56 INFO MSTransformManager::open Select data 2026-03-05 01:50:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:50:59 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:50:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 0.697578292rad' successfully parsed 2026-03-05 01:50:59 INFO phaseshift::::casa Shift phase center 2026-03-05 01:51:00 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:51:00 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:50:56.023925 End time: 2026-03-05 01:50:59.866899 2026-03-05 01:51:00 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:51:00 INFO phaseshift::::casa ########################################## 2026-03-05 01:51:00 INFO tclean::::casa ########################################## 2026-03-05 01:51:00 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:51:00 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-03-05 01:51:00 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:51:00 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:51:00 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:51:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:51:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:51:00 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:51:00 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:51:00 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:51:00 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:51:00 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:51:00 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:51:00 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:51:01 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:51:01 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02231 2026-03-05 01:51:01 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:51:01 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:51:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:51:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:51:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:51:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:51:03 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:51:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:51:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:51:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:51:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:51:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:51:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:51:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:51:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:51:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:51:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:51:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:51:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:51:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:51:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:51:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:51:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:51:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:51:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:51:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:51:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:51:08 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:51:08 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:51:08 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:51:09 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:51:09 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:51:11 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:50:59.897942 End time: 2026-03-05 01:51:10.597034 2026-03-05 01:51:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:51:11 INFO tclean::::casa ########################################## 2026-03-05 01:51:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:51:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:51:11 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:51:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:51:11 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:51:11 2026****** 2026-03-05 01:51:11 INFO ImageFitter::fit+ 2026-03-05 01:51:11 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:51:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:51:11 INFO ImageFitter::fit+ --- region: 2026-03-05 01:51:11 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:51:11 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:51:11 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:51:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:51:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:51:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:51:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:51:11 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:51:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:51:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:51:11 INFO imstat::::casa ########################################## 2026-03-05 01:51:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:51:11 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:51:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:51:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:51:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:51:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:51:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:51:11 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:51:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:51:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:51:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:51:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:51:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:51:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:51:11 INFO imstat:::: Values --- 2026-03-05 01:51:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:51:11 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:51:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:51:11 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-03-05 01:51:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:51:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:51:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:51:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:51:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:51:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:51:11 INFO imstat:::: Statistics --- 2026-03-05 01:51:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:51:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:51:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:51:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:51:11 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-03-05 01:51:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-03-05 01:51:11 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-03-05 01:51:11 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-03-05 01:51:11 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-03-05 01:51:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:51:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:51:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:51:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:51:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:51:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:51:11 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 2026-03-05 01:51:11 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:51:10.655126 End time: 2026-03-05 01:51:10.677853 2026-03-05 01:51:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:51:11 INFO imstat::::casa ########################################## 2026-03-05 01:51:11 INFO phaseshift::::casa ########################################## 2026-03-05 01:51:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:51:11 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39d58m05.8512' ) 2026-03-05 01:51:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:51:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:51:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:51:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:51:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:51:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:51:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:51:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:51:11 INFO MSTransformManager::open Select data 2026-03-05 01:51:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:51:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:51:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39d58m05.8512' successfully parsed 2026-03-05 01:51:13 INFO phaseshift::::casa Shift phase center 2026-03-05 01:51:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:51:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:51:10.691916 End time: 2026-03-05 01:51:13.973108 2026-03-05 01:51:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:51:14 INFO phaseshift::::casa ########################################## 2026-03-05 01:51:14 INFO tclean::::casa ########################################## 2026-03-05 01:51:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:51:14 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 ) 2026-03-05 01:51:14 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:51:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:51:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:51:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:51:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:51:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:51:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:51:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:51:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:51:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:51:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:51:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:51:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:51:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021809 2026-03-05 01:51:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:51:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:51:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:51:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:51:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:51:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:51:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:51:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:51:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:51:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:51:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:51:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:51:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:51:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:51:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:51:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:51:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:51:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:51:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:51:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:51:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:51:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:51:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:51:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:51:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:51:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:51:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:51:23 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:51:23 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:51:23 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:51:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:51:24 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:51:25 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:51:14.002641 End time: 2026-03-05 01:51:24.766645 2026-03-05 01:51:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:51:25 INFO tclean::::casa ########################################## 2026-03-05 01:51:25 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:51:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:51:25 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) 2026-03-05 01:51:25 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:51:25 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:51:25 2026****** 2026-03-05 01:51:25 INFO ImageFitter::fit+ 2026-03-05 01:51:25 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:51:25 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:51:25 INFO ImageFitter::fit+ --- region: 2026-03-05 01:51:25 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:51:25 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:51:25 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:51:25 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:51:25 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:51:25 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:51:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:51:25 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) 2026-03-05 01:51:25 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:51:25 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:51:25 INFO imstat::::casa ########################################## 2026-03-05 01:51:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:51:25 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 ) 2026-03-05 01:51:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:51:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:51:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:51:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:51:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:51:25 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) 2026-03-05 01:51:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:51:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:51:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:51:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:51:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:51:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:51:25 INFO imstat:::: Values --- 2026-03-05 01:51:25 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:51:25 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:51:25 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:51:25 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-03-05 01:51:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:51:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:51:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:51:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-03-05 01:51:25 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:51:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:51:25 INFO imstat:::: Statistics --- 2026-03-05 01:51:25 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:51:25 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:51:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:51:25 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:51:25 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-03-05 01:51:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-03-05 01:51:25 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-03-05 01:51:25 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-03-05 01:51:25 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-03-05 01:51:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:51:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:51:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:51:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:51:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:51:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:51:25 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 2026-03-05 01:51:25 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:51:24.820905 End time: 2026-03-05 01:51:24.841816 2026-03-05 01:51:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:51:25 INFO imstat::::casa ########################################## 2026-03-05 01:51:25 INFO phaseshift::::casa ########################################## 2026-03-05 01:51:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:51:25 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 02:39:52.3901' ) 2026-03-05 01:51:25 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:51:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:51:25 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:51:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:51:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:51:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:51:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:51:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:51:25 INFO MSTransformManager::open Select data 2026-03-05 01:51:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:51:27 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 ".". 2026-03-05 01:51:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 02:39:52.3901' successfully parsed 2026-03-05 01:51:27 INFO phaseshift::::casa Shift phase center 2026-03-05 01:51:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:51:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:51:24.854966 End time: 2026-03-05 01:51:28.230474 2026-03-05 01:51:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:51:28 INFO phaseshift::::casa ########################################## 2026-03-05 01:51:28 INFO tclean::::casa ########################################## 2026-03-05 01:51:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:51:28 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 ) 2026-03-05 01:51:28 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:51:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:51:28 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:51:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:51:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:51:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:51:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:51:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:51:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:51:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:51:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:51:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:51:30 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:51:30 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021462 2026-03-05 01:51:30 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:51:30 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:51:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:51:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:51:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:51:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:51:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:51:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:51:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:51:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:51:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:51:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:51:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:51:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:51:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:51:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:51:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:51:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:51:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:51:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:51:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:51:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:51:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:51:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:51:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:51:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:51:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:51:37 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:51:37 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:51:37 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:51:38 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:51:39 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:51:40 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:51:28.260524 End time: 2026-03-05 01:51:39.743569 2026-03-05 01:51:40 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:51:40 INFO tclean::::casa ########################################## 2026-03-05 01:51:40 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:51:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:51:40 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) 2026-03-05 01:51:40 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:51:40 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:51:40 2026****** 2026-03-05 01:51:40 INFO ImageFitter::fit+ 2026-03-05 01:51:40 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:51:40 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:51:40 INFO ImageFitter::fit+ --- region: 2026-03-05 01:51:40 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:51:40 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:51:40 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:51:40 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:51:40 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:51:40 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:51:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:51:40 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) 2026-03-05 01:51:40 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- ra: 128.000008 +/- 0.000127 pixels 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:51:40 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:51:40 INFO imstat::::casa ########################################## 2026-03-05 01:51:40 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:51:40 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 ) 2026-03-05 01:51:40 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:51:40 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:51:40 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:51:40 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:51:40 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:51:40 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) 2026-03-05 01:51:40 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:51:40 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:51:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:51:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:51:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-03-05 01:51:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-03-05 01:51:40 INFO imstat:::: Values --- 2026-03-05 01:51:40 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:51:40 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:51:40 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:51:40 INFO imstat:::: -- minimum value [min]: -7.78143e-05 Jy/beam 2026-03-05 01:51:40 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:51:40 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:51:40 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:51:40 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:51:40 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:51:40 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:51:40 INFO imstat:::: Statistics --- 2026-03-05 01:51:40 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:51:40 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:51:40 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:51:40 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:51:40 INFO imstat:::: -- Median of the pixel values [median]: -1.86838e-05 Jy/beam 2026-03-05 01:51:40 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73769e-05 Jy/beam 2026-03-05 01:51:40 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-03-05 01:51:40 INFO imstat:::: -- First quartile [q1]: -3.45216e-05 Jy/beam 2026-03-05 01:51:40 INFO imstat:::: -- Third quartile [q3]: 1.1124e-06 Jy/beam 2026-03-05 01:51:40 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:51:40 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:51:40 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:51:40 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:51:40 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:51:40 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:51:40 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 2026-03-05 01:51:40 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:51:39.797622 End time: 2026-03-05 01:51:39.818652 2026-03-05 01:51:40 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:51:40 INFO imstat::::casa ########################################## 2026-03-05 01:51:40 INFO phaseshift::::casa ########################################## 2026-03-05 01:51:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:51:40 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39.968292000deg' ) 2026-03-05 01:51:40 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:51:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:51:40 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:51:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:51:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:51:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:51:40 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:51:40 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:51:40 INFO MSTransformManager::open Select data 2026-03-05 01:51:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:51:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:51:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39.968292000deg' successfully parsed 2026-03-05 01:51:42 INFO phaseshift::::casa Shift phase center 2026-03-05 01:51:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:51:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:51:39.832446 End time: 2026-03-05 01:51:43.202173 2026-03-05 01:51:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:51:43 INFO phaseshift::::casa ########################################## 2026-03-05 01:51:43 INFO tclean::::casa ########################################## 2026-03-05 01:51:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:51:43 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 ) 2026-03-05 01:51:43 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:51:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:51:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:51:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:51:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:51:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:51:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:51:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:51:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:51:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:51:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:51:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:51:44 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:51:45 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024739 2026-03-05 01:51:45 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:51:45 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:51:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:51:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:51:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:51:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:51:47 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:51:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:51:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:51:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:51:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:51:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:51:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:51:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:51:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:51:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:51:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:51:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:51:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:51:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:51:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:51:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:51:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:51:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:51:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:51:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:51:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:51:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:51:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:51:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:51:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:51:53 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:51:53 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:51:55 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:51:43.232729 End time: 2026-03-05 01:51:54.624390 2026-03-05 01:51:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:51:55 INFO tclean::::casa ########################################## 2026-03-05 01:51:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:51:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:51:55 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:51:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:51:55 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:51:55 2026****** 2026-03-05 01:51:55 INFO ImageFitter::fit+ 2026-03-05 01:51:55 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:51:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:51:55 INFO ImageFitter::fit+ --- region: 2026-03-05 01:51:55 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:51:55 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:51:55 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:51:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:51:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:51:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:51:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:51:55 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) 2026-03-05 01:51:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:51:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:51:55 INFO imstat::::casa ########################################## 2026-03-05 01:51:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:51:55 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:51:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:51:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:51:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:51:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:51:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:51:55 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-03-05 01:51:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:51:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:51:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:51:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:51:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:51:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:51:55 INFO imstat:::: Values --- 2026-03-05 01:51:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:51:55 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:51:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:51:55 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-03-05 01:51:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:51:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-03-05 01:51:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:51:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-03-05 01:51:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:51:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:51:55 INFO imstat:::: Statistics --- 2026-03-05 01:51:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:51:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:51:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:51:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:51:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-03-05 01:51:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-03-05 01:51:55 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-03-05 01:51:55 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-03-05 01:51:55 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-03-05 01:51:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:51:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:51:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:51:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:51:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:51:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:51:55 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 2026-03-05 01:51:55 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:51:54.683124 End time: 2026-03-05 01:51:54.706277 2026-03-05 01:51:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:51:55 INFO imstat::::casa ########################################## 2026-03-05 01:51:55 INFO phaseshift::::casa ########################################## 2026-03-05 01:51:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:51:55 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 0.697578292rad' ) 2026-03-05 01:51:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:51:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:51:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:51:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:51:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:51:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:51:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:51:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:51:55 INFO MSTransformManager::open Select data 2026-03-05 01:51:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:51:58 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:51:58 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 0.697578292rad' successfully parsed 2026-03-05 01:51:58 INFO phaseshift::::casa Shift phase center 2026-03-05 01:51:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:51:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:51:54.719350 End time: 2026-03-05 01:51:58.684178 2026-03-05 01:51:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:51:59 INFO phaseshift::::casa ########################################## 2026-03-05 01:51:59 INFO tclean::::casa ########################################## 2026-03-05 01:51:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:51:59 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 ) 2026-03-05 01:51:59 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:51:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:51:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:51:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:51:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:51:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:51:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:51:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:51:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:51:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:51:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:51:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:52:00 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:52:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02533 2026-03-05 01:52:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:52:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:52:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:52:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:52:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:52:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:52:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:52:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:52:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:52:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:52:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:52:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:52:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:52:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:52:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:52:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:52:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:52:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:52:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:52:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:52:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:52:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:52:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:52:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:52:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:52:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:52:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:52:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:52:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:52:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:52:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:52:09 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:52:10 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:51:58.715279 End time: 2026-03-05 01:52:09.790622 2026-03-05 01:52:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:52:10 INFO tclean::::casa ########################################## 2026-03-05 01:52:10 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:52:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:52:10 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:52:10 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:52:10 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:52:10 2026****** 2026-03-05 01:52:10 INFO ImageFitter::fit+ 2026-03-05 01:52:10 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:52:10 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:52:10 INFO ImageFitter::fit+ --- region: 2026-03-05 01:52:10 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:52:10 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:52:10 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:52:10 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:52:10 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:52:10 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:52:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:52:10 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:52:10 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:52:10 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:52:10 INFO imstat::::casa ########################################## 2026-03-05 01:52:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:52:10 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 ) 2026-03-05 01:52:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:52:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:52:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:52:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:52:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:52:10 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) 2026-03-05 01:52:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:52:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:52:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:52:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:52:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:52:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:52:10 INFO imstat:::: Values --- 2026-03-05 01:52:10 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:52:10 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:52:10 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:52:10 INFO imstat:::: -- minimum value [min]: -7.7781e-05 Jy/beam 2026-03-05 01:52:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:52:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:52:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:52:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:52:10 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:52:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:52:10 INFO imstat:::: Statistics --- 2026-03-05 01:52:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:52:10 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:52:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:52:10 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:52:10 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-03-05 01:52:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73593e-05 Jy/beam 2026-03-05 01:52:10 INFO imstat:::: -- IQR [quartile]: 3.56161e-05 Jy/beam 2026-03-05 01:52:10 INFO imstat:::: -- First quartile [q1]: -3.45125e-05 Jy/beam 2026-03-05 01:52:10 INFO imstat:::: -- Third quartile [q3]: 1.10364e-06 Jy/beam 2026-03-05 01:52:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:52:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:52:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:52:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:52:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:52:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:52:10 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 2026-03-05 01:52:10 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:52:09.849359 End time: 2026-03-05 01:52:09.873120 2026-03-05 01:52:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:52:10 INFO imstat::::casa ########################################## 2026-03-05 01:52:10 INFO phaseshift::::casa ########################################## 2026-03-05 01:52:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:52:10 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39d58m05.8512' ) 2026-03-05 01:52:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:52:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:52:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:52:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:52:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:52:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:52:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:52:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:52:10 INFO MSTransformManager::open Select data 2026-03-05 01:52:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:52:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:52:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39d58m05.8512' successfully parsed 2026-03-05 01:52:13 INFO phaseshift::::casa Shift phase center 2026-03-05 01:52:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:52:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:52:09.886021 End time: 2026-03-05 01:52:13.305579 2026-03-05 01:52:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:52:13 INFO phaseshift::::casa ########################################## 2026-03-05 01:52:13 INFO tclean::::casa ########################################## 2026-03-05 01:52:13 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:52:13 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 ) 2026-03-05 01:52:13 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:52:13 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:52:13 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:52:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:52:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:52:13 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:52:13 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:52:13 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:52:13 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:52:13 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:52:13 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:52:13 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:52:14 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:52:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02245 2026-03-05 01:52:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:52:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:52:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:52:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:52:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:52:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:52:16 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:52:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:52:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:52:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:52:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:52:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:52:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:52:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:52:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:52:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:52:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:52:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:52:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:52:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:52:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:52:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:52:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:52:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:52:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:52:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:52:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:52:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:52:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:52:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:52:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:52:23 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:52:24 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:52:13.337130 End time: 2026-03-05 01:52:23.922930 2026-03-05 01:52:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:52:24 INFO tclean::::casa ########################################## 2026-03-05 01:52:24 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:52:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:52:24 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) 2026-03-05 01:52:24 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:52:24 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:52:24 2026****** 2026-03-05 01:52:24 INFO ImageFitter::fit+ 2026-03-05 01:52:24 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:52:24 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:52:24 INFO ImageFitter::fit+ --- region: 2026-03-05 01:52:24 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:52:24 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:52:24 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:52:24 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:52:24 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:52:24 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:52:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:52:24 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) 2026-03-05 01:52:24 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:52:24 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:52:24 INFO imstat::::casa ########################################## 2026-03-05 01:52:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:52:24 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 ) 2026-03-05 01:52:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:52:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:52:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:52:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:52:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:52:24 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) 2026-03-05 01:52:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:52:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:52:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:52:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:52:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:52:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:52:24 INFO imstat:::: Values --- 2026-03-05 01:52:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:52:24 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:52:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:52:24 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-03-05 01:52:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:52:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:52:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:52:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:52:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:52:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:52:24 INFO imstat:::: Statistics --- 2026-03-05 01:52:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:52:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:52:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:52:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:52:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-03-05 01:52:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-03-05 01:52:24 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-03-05 01:52:24 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-03-05 01:52:24 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-03-05 01:52:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:52:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:52:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:52:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:52:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:52:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:52:24 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 2026-03-05 01:52:24 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:52:23.979974 End time: 2026-03-05 01:52:24.002784 2026-03-05 01:52:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:52:24 INFO imstat::::casa ########################################## 2026-03-05 01:52:24 INFO phaseshift::::casa ########################################## 2026-03-05 01:52:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:52:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 02:39:52.3901' ) 2026-03-05 01:52:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:52:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:52:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:52:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:52:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:52:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:52:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:52:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:52:24 INFO MSTransformManager::open Select data 2026-03-05 01:52:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:52:27 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 ".". 2026-03-05 01:52:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 02:39:52.3901' successfully parsed 2026-03-05 01:52:27 INFO phaseshift::::casa Shift phase center 2026-03-05 01:52:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:52:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:52:24.016545 End time: 2026-03-05 01:52:28.120132 2026-03-05 01:52:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:52:28 INFO phaseshift::::casa ########################################## 2026-03-05 01:52:28 INFO tclean::::casa ########################################## 2026-03-05 01:52:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:52:28 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 ) 2026-03-05 01:52:28 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:52:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:52:28 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:52:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:52:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:52:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:52:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:52:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:52:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:52:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:52:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:52:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:52:29 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:52:29 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022451 2026-03-05 01:52:29 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:52:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:52:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:52:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:52:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:52:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:52:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:52:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:52:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:52:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:52:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:52:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:52:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:52:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:52:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:52:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:52:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:52:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:52:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:52:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:52:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:52:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:52:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:52:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:52:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:52:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:52:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:52:37 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:52:37 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:52:37 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:52:38 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:52:38 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:52:39 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:52:28.151160 End time: 2026-03-05 01:52:39.213873 2026-03-05 01:52:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:52:39 INFO tclean::::casa ########################################## 2026-03-05 01:52:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:52:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:52:39 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-03-05 01:52:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:52:39 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:52:39 2026****** 2026-03-05 01:52:39 INFO ImageFitter::fit+ 2026-03-05 01:52:39 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:52:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:52:39 INFO ImageFitter::fit+ --- region: 2026-03-05 01:52:39 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:52:39 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:52:39 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:52:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:52:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:52:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:52:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:52:39 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-03-05 01:52:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:52:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:52:39 INFO imstat::::casa ########################################## 2026-03-05 01:52:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:52:39 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-03-05 01:52:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:52:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:52:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:52:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:52:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:52:39 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) 2026-03-05 01:52:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:52:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:52:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:52:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:52:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-03-05 01:52:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-03-05 01:52:39 INFO imstat:::: Values --- 2026-03-05 01:52:39 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:52:39 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:52:39 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:52:39 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-03-05 01:52:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:52:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:52:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:52:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:52:39 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:52:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:52:39 INFO imstat:::: Statistics --- 2026-03-05 01:52:39 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:52:39 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:52:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:52:39 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:52:39 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-03-05 01:52:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-03-05 01:52:39 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-03-05 01:52:39 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-03-05 01:52:39 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-03-05 01:52:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:52:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:52:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:52:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:52:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:52:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:52:39 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 2026-03-05 01:52:39 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:52:39.269861 End time: 2026-03-05 01:52:39.291774 2026-03-05 01:52:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:52:39 INFO imstat::::casa ########################################## 2026-03-05 01:52:39 INFO phaseshift::::casa ########################################## 2026-03-05 01:52:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:52:39 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39.968292000deg' ) 2026-03-05 01:52:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:52:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:52:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:52:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:52:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:52:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:52:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:52:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:52:39 INFO MSTransformManager::open Select data 2026-03-05 01:52:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:52:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:52:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39.968292000deg' successfully parsed 2026-03-05 01:52:42 INFO phaseshift::::casa Shift phase center 2026-03-05 01:52:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:52:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:52:39.304806 End time: 2026-03-05 01:52:43.165478 2026-03-05 01:52:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:52:43 INFO phaseshift::::casa ########################################## 2026-03-05 01:52:43 INFO tclean::::casa ########################################## 2026-03-05 01:52:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:52:43 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 ) 2026-03-05 01:52:43 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:52:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:52:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:52:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:52:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:52:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:52:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:52:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:52:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:52:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:52:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:52:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:52:44 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:52:45 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021462 2026-03-05 01:52:45 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:52:45 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:52:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:52:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:52:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:52:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:52:46 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:52:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:52:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:52:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:52:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:52:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:52:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:52:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:52:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:52:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:52:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:52:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:52:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:52:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:52:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:52:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:52:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:52:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:52:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:52:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:52:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:52:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:52:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:52:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:52:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:52:53 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:52:53 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:52:54 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:52:43.197394 End time: 2026-03-05 01:52:54.295852 2026-03-05 01:52:54 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:52:54 INFO tclean::::casa ########################################## 2026-03-05 01:52:54 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:52:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:52:54 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) 2026-03-05 01:52:54 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:52:54 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:52:54 2026****** 2026-03-05 01:52:54 INFO ImageFitter::fit+ 2026-03-05 01:52:54 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:52:54 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:52:54 INFO ImageFitter::fit+ --- region: 2026-03-05 01:52:54 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:52:54 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:52:54 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:52:54 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:52:54 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:52:54 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:52:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:52:54 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) 2026-03-05 01:52:54 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:52:54 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:52:54 INFO imstat::::casa ########################################## 2026-03-05 01:52:54 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:52:54 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 ) 2026-03-05 01:52:54 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:52:54 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:52:54 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:52:54 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:52:54 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:52:54 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) 2026-03-05 01:52:54 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:52:54 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:52:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:52:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:52:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:52:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:52:54 INFO imstat:::: Values --- 2026-03-05 01:52:54 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:52:54 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:52:54 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:52:54 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-03-05 01:52:54 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:52:54 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:52:54 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:52:54 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:52:54 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:52:54 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:52:54 INFO imstat:::: Statistics --- 2026-03-05 01:52:54 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:52:54 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:52:54 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:52:54 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:52:54 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-03-05 01:52:54 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-03-05 01:52:54 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-03-05 01:52:54 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-03-05 01:52:54 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-03-05 01:52:54 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:52:54 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:52:54 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:52:54 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:52:54 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:52:54 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:52:54 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 2026-03-05 01:52:54 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:52:54.354446 End time: 2026-03-05 01:52:54.376219 2026-03-05 01:52:54 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:52:54 INFO imstat::::casa ########################################## 2026-03-05 01:52:54 INFO phaseshift::::casa ########################################## 2026-03-05 01:52:54 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:52:54 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 0.697578292rad' ) 2026-03-05 01:52:54 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:52:54 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:52:54 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:52:54 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:52:54 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:52:54 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:52:54 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:52:54 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:52:54 INFO MSTransformManager::open Select data 2026-03-05 01:52:54 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:52:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:52:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 0.697578292rad' successfully parsed 2026-03-05 01:52:57 INFO phaseshift::::casa Shift phase center 2026-03-05 01:52:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:52:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:52:54.391027 End time: 2026-03-05 01:52:58.235498 2026-03-05 01:52:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:52:58 INFO phaseshift::::casa ########################################## 2026-03-05 01:52:58 INFO tclean::::casa ########################################## 2026-03-05 01:52:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:52:58 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 ) 2026-03-05 01:52:58 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:52:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:52:58 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:52:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:52:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:52:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:52:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:52:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:52:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:52:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:52:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:52:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:52:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:52:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023702 2026-03-05 01:52:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:52:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:53:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:53:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:53:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:53:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:53:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:53:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:53:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:53:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:53:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:53:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:53:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:53:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:53:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:53:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:53:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:53:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:53:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:53:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:53:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:53:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:53:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:53:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:53:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:53:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:53:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:53:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:53:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:53:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:53:07 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:53:08 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:53:09 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:52:58.265299 End time: 2026-03-05 01:53:08.816940 2026-03-05 01:53:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:53:09 INFO tclean::::casa ########################################## 2026-03-05 01:53:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:53:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:53:09 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) 2026-03-05 01:53:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:53:09 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:53:09 2026****** 2026-03-05 01:53:09 INFO ImageFitter::fit+ 2026-03-05 01:53:09 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:53:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:53:09 INFO ImageFitter::fit+ --- region: 2026-03-05 01:53:09 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:53:09 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:53:09 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:53:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:53:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:53:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:53:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:53:09 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) 2026-03-05 01:53:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:53:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:53:09 INFO imstat::::casa ########################################## 2026-03-05 01:53:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:53:09 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 ) 2026-03-05 01:53:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:53:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:53:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:53:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:53:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:53:09 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) 2026-03-05 01:53:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:53:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:53:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:53:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:53:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:53:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:53:09 INFO imstat:::: Values --- 2026-03-05 01:53:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:53:09 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:53:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:53:09 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-03-05 01:53:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:53:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:53:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:53:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:53:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:53:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:53:09 INFO imstat:::: Statistics --- 2026-03-05 01:53:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:53:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:53:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:53:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:53:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-03-05 01:53:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-03-05 01:53:09 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-03-05 01:53:09 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-03-05 01:53:09 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-03-05 01:53:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:53:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:53:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:53:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:53:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:53:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:53:09 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 2026-03-05 01:53:09 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:53:08.883592 End time: 2026-03-05 01:53:08.905400 2026-03-05 01:53:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:53:09 INFO imstat::::casa ########################################## 2026-03-05 01:53:09 INFO phaseshift::::casa ########################################## 2026-03-05 01:53:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:53:09 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39d58m05.8512' ) 2026-03-05 01:53:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:53:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:53:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:53:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:53:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:53:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:53:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:53:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:53:09 INFO MSTransformManager::open Select data 2026-03-05 01:53:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:53:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:53:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39d58m05.8512' successfully parsed 2026-03-05 01:53:12 INFO phaseshift::::casa Shift phase center 2026-03-05 01:53:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:53:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:53:08.919027 End time: 2026-03-05 01:53:12.408130 2026-03-05 01:53:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:53:12 INFO phaseshift::::casa ########################################## 2026-03-05 01:53:12 INFO tclean::::casa ########################################## 2026-03-05 01:53:12 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:53:12 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-03-05 01:53:12 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:53:12 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:53:12 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:53:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:53:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:53:13 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:53:13 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:53:13 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:53:13 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:53:13 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:53:13 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:53:13 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:53:14 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:53:14 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023052 2026-03-05 01:53:14 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:53:14 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:53:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:53:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:53:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:53:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:53:16 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:53:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:53:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:53:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:53:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:53:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:53:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:53:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:53:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:53:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:53:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:53:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:53:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:53:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:53:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:53:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:53:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:53:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:53:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:53:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:53:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:53:21 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:53:21 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:53:21 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:53:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:53:22 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:53:23 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:53:12.440191 End time: 2026-03-05 01:53:23.329733 2026-03-05 01:53:23 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:53:23 INFO tclean::::casa ########################################## 2026-03-05 01:53:23 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:53:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:53:23 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) 2026-03-05 01:53:23 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:53:23 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:53:23 2026****** 2026-03-05 01:53:23 INFO ImageFitter::fit+ 2026-03-05 01:53:23 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:53:23 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:53:23 INFO ImageFitter::fit+ --- region: 2026-03-05 01:53:23 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:53:23 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:53:23 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:53:23 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:53:23 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:53:23 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:53:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:53:23 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) 2026-03-05 01:53:23 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:53:23 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:53:23 INFO imstat::::casa ########################################## 2026-03-05 01:53:23 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:53:23 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 ) 2026-03-05 01:53:23 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:53:23 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:53:23 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:53:23 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:53:23 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:53:23 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) 2026-03-05 01:53:23 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:53:23 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:53:23 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:53:23 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:53:23 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:53:23 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:53:23 INFO imstat:::: Values --- 2026-03-05 01:53:23 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:53:23 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:53:23 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:53:23 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-03-05 01:53:23 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:53:23 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:53:23 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:53:23 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:53:23 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:53:23 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:53:23 INFO imstat:::: Statistics --- 2026-03-05 01:53:23 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:53:23 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:53:23 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:53:23 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:53:23 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-03-05 01:53:23 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-03-05 01:53:23 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-03-05 01:53:23 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-03-05 01:53:23 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-03-05 01:53:23 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:53:23 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:53:23 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:53:23 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:53:23 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:53:23 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:53:23 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 2026-03-05 01:53:23 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:53:23.385244 End time: 2026-03-05 01:53:23.407342 2026-03-05 01:53:23 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:53:23 INFO imstat::::casa ########################################## 2026-03-05 01:53:23 INFO phaseshift::::casa ########################################## 2026-03-05 01:53:23 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:53:23 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 02:39:52.3901' ) 2026-03-05 01:53:23 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:53:23 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:53:23 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:53:23 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:53:23 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:53:23 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:53:23 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:53:23 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:53:23 INFO MSTransformManager::open Select data 2026-03-05 01:53:23 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:53:26 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 ".". 2026-03-05 01:53:26 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 02:39:52.3901' successfully parsed 2026-03-05 01:53:26 INFO phaseshift::::casa Shift phase center 2026-03-05 01:53:27 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:53:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:53:23.420548 End time: 2026-03-05 01:53:27.087768 2026-03-05 01:53:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:53:27 INFO phaseshift::::casa ########################################## 2026-03-05 01:53:27 INFO tclean::::casa ########################################## 2026-03-05 01:53:27 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:53:27 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 ) 2026-03-05 01:53:27 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:53:27 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:53:27 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:53:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:53:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:53:27 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:53:27 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:53:27 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:53:27 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:53:27 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:53:27 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:53:27 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:53:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:53:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022217 2026-03-05 01:53:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:53:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:53:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:53:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:53:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:53:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:53:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:53:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:53:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:53:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:53:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:53:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:53:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:53:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:53:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:53:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:53:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:53:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:53:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:53:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:53:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:53:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:53:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-03-05 01:53:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:53:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:53:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:53:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:53:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:53:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:53:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:53:37 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:53:37 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:53:38 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:53:27.119452 End time: 2026-03-05 01:53:38.228588 2026-03-05 01:53:38 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:53:38 INFO tclean::::casa ########################################## 2026-03-05 01:53:38 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:53:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:53:38 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) 2026-03-05 01:53:38 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:53:38 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:53:38 2026****** 2026-03-05 01:53:38 INFO ImageFitter::fit+ 2026-03-05 01:53:38 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:53:38 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:53:38 INFO ImageFitter::fit+ --- region: 2026-03-05 01:53:38 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:53:38 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:53:38 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:53:38 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:53:38 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:53:38 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:53:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:53:38 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) 2026-03-05 01:53:38 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116885 Jy 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126501 Jy 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:53:38 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:53:38 INFO imstat::::casa ########################################## 2026-03-05 01:53:38 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:53:38 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 ) 2026-03-05 01:53:38 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:53:38 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:53:38 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:53:38 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:53:38 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:53:38 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) 2026-03-05 01:53:38 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:53:38 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:53:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:53:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:53:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-03-05 01:53:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-03-05 01:53:38 INFO imstat:::: Values --- 2026-03-05 01:53:38 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:53:38 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:53:38 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:53:38 INFO imstat:::: -- minimum value [min]: -7.78268e-05 Jy/beam 2026-03-05 01:53:38 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:53:38 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:53:38 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:53:38 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:53:38 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:53:38 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:53:38 INFO imstat:::: Statistics --- 2026-03-05 01:53:38 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:53:38 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:53:38 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:53:38 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:53:38 INFO imstat:::: -- Median of the pixel values [median]: -1.8675e-05 Jy/beam 2026-03-05 01:53:38 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73782e-05 Jy/beam 2026-03-05 01:53:38 INFO imstat:::: -- IQR [quartile]: 3.56598e-05 Jy/beam 2026-03-05 01:53:38 INFO imstat:::: -- First quartile [q1]: -3.45364e-05 Jy/beam 2026-03-05 01:53:38 INFO imstat:::: -- Third quartile [q3]: 1.12335e-06 Jy/beam 2026-03-05 01:53:38 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:53:38 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:53:38 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:53:38 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:53:38 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:53:38 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:53:38 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 2026-03-05 01:53:38 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:53:38.290921 End time: 2026-03-05 01:53:38.313040 2026-03-05 01:53:38 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:53:38 INFO imstat::::casa ########################################## 2026-03-05 01:53:38 INFO phaseshift::::casa ########################################## 2026-03-05 01:53:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:53:38 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39.968292000deg' ) 2026-03-05 01:53:38 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:53:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:53:38 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:53:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:53:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:53:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:53:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:53:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:53:38 INFO MSTransformManager::open Select data 2026-03-05 01:53:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:53:41 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:53:41 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39.968292000deg' successfully parsed 2026-03-05 01:53:41 INFO phaseshift::::casa Shift phase center 2026-03-05 01:53:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:53:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:53:38.326101 End time: 2026-03-05 01:53:41.911049 2026-03-05 01:53:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:53:42 INFO phaseshift::::casa ########################################## 2026-03-05 01:53:42 INFO tclean::::casa ########################################## 2026-03-05 01:53:42 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:53:42 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-03-05 01:53:42 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:53:42 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:53:42 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:53:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:53:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:53:42 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:53:42 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:53:42 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:53:42 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:53:42 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:53:42 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:53:42 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:53:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:53:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025169 2026-03-05 01:53:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:53:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:53:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:53:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:53:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:53:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:53:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:53:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:53:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:53:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:53:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:53:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:53:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:53:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:53:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:53:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:53:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:53:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:53:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:53:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:53:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:53:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:53:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:53:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:53:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:53:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:53:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:53:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:53:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:53:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:53:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:53:52 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:53:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:53:53 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:53:41.941799 End time: 2026-03-05 01:53:53.189419 2026-03-05 01:53:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:53:53 INFO tclean::::casa ########################################## 2026-03-05 01:53:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:53:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:53:53 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) 2026-03-05 01:53:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:53:53 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:53:53 2026****** 2026-03-05 01:53:53 INFO ImageFitter::fit+ 2026-03-05 01:53:53 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:53:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:53:53 INFO ImageFitter::fit+ --- region: 2026-03-05 01:53:53 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:53:53 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:53:53 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:53:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:53:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:53:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:53:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:53:53 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) 2026-03-05 01:53:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:53:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:53:53 INFO imstat::::casa ########################################## 2026-03-05 01:53:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:53:53 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 ) 2026-03-05 01:53:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:53:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:53:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:53:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:53:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:53:53 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) 2026-03-05 01:53:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:53:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:53:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:53:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:53:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:53:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:53:53 INFO imstat:::: Values --- 2026-03-05 01:53:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:53:53 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:53:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:53:53 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-03-05 01:53:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:53:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:53:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:53:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:53:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:53:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:53:53 INFO imstat:::: Statistics --- 2026-03-05 01:53:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:53:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:53:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:53:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:53:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-03-05 01:53:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-03-05 01:53:53 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-03-05 01:53:53 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-03-05 01:53:53 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-03-05 01:53:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:53:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:53:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:53:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:53:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:53:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:53:53 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 2026-03-05 01:53:53 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:53:53.241265 End time: 2026-03-05 01:53:53.261468 2026-03-05 01:53:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:53:53 INFO imstat::::casa ########################################## 2026-03-05 01:53:53 INFO phaseshift::::casa ########################################## 2026-03-05 01:53:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-03-05 01:53:53 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 5.201492224rad 0.697578292rad' ) 2026-03-05 01:53:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-03-05 01:53:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-03-05 01:53:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-03-05 01:53:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-03-05 01:53:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-03-05 01:53:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-03-05 01:53:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-03-05 01:53:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-03-05 01:53:53 INFO MSTransformManager::open Select data 2026-03-05 01:53:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-03-05 01:53:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-03-05 01:53:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 0.697578292rad' successfully parsed 2026-03-05 01:53:56 INFO phaseshift::::casa Shift phase center 2026-03-05 01:53:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-03-05 01:53:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-03-05 01:53:53.275461 End time: 2026-03-05 01:53:56.690499 2026-03-05 01:53:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-03-05 01:53:57 INFO phaseshift::::casa ########################################## 2026-03-05 01:53:57 INFO tclean::::casa ########################################## 2026-03-05 01:53:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-03-05 01:53:57 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 ) 2026-03-05 01:53:57 INFO tclean::::casa Verifying Input Parameters 2026-03-05 01:53:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-03-05 01:53:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-03-05 01:53:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:53:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-03-05 01:53:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-03-05 01:53:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-03-05 01:53:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-03-05 01:53:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-03-05 01:53:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-03-05 01:53:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-03-05 01:53:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-03-05 01:53:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-03-05 01:53:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023081 2026-03-05 01:53:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:53:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-03-05 01:53:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-03-05 01:53:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-03-05 01:54:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-03-05 01:54:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-03-05 01:54:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-03-05 01:54:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:54:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-03-05 01:54:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-03-05 01:54:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-03-05 01:54:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-03-05 01:54:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-03-05 01:54:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:54:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-03-05 01:54:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-03-05 01:54:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-03-05 01:54:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-03-05 01:54:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-03-05 01:54:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:54:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-03-05 01:54:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-03-05 01:54:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-03-05 01:54:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-03-05 01:54:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-03-05 01:54:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-03-05 01:54:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-03-05 01:54:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-03-05 01:54:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-03-05 01:54:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-03-05 01:54:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-03-05 01:54:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-03-05 01:54:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-03-05 01:54:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-03-05 01:54:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-03-05 01:54:07 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-03-05 01:54:08 INFO tclean::::casa Task tclean complete. Start time: 2026-03-05 01:53:56.720011 End time: 2026-03-05 01:54:07.744572 2026-03-05 01:54:08 INFO tclean::::casa ##### End Task: tclean ##### 2026-03-05 01:54:08 INFO tclean::::casa ########################################## 2026-03-05 01:54:08 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-03-05 01:54:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:54:08 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) 2026-03-05 01:54:08 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-03-05 01:54:08 INFO ImageFitter::fit ****** Fit performed at Thu Mar 5 01:54:08 2026****** 2026-03-05 01:54:08 INFO ImageFitter::fit+ 2026-03-05 01:54:08 INFO ImageFitter::fit+ Input parameters --- 2026-03-05 01:54:08 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-03-05 01:54:08 INFO ImageFitter::fit+ --- region: 2026-03-05 01:54:08 INFO ImageFitter::fit+ --- channel: 0 2026-03-05 01:54:08 INFO ImageFitter::fit+ --- stokes: I 2026-03-05 01:54:08 INFO ImageFitter::fit+ --- mask: 2026-03-05 01:54:08 INFO ImageFitter::fit+ --- include pixel range: [] 2026-03-05 01:54:08 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-03-05 01:54:08 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-03-05 01:54:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:54:08 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) 2026-03-05 01:54:08 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ Position --- 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ Flux --- 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-03-05 01:54:08 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-03-05 01:54:08 INFO imstat::::casa ########################################## 2026-03-05 01:54:08 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-03-05 01:54:08 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 ) 2026-03-05 01:54:08 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-03-05 01:54:08 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-03-05 01:54:08 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-03-05 01:54:08 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-03-05 01:54:08 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-03-05 01:54:08 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) 2026-03-05 01:54:08 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-03-05 01:54:08 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-03-05 01:54:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-03-05 01:54:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-03-05 01:54:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-03-05 01:54:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-03-05 01:54:08 INFO imstat:::: Values --- 2026-03-05 01:54:08 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-03-05 01:54:08 INFO imstat:::: -- number of points [npts]: 65536 2026-03-05 01:54:08 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-03-05 01:54:08 INFO imstat:::: -- minimum value [min]: -7.77956e-05 Jy/beam 2026-03-05 01:54:08 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-03-05 01:54:08 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-03-05 01:54:08 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-03-05 01:54:08 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-03-05 01:54:08 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-03-05 01:54:08 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-03-05 01:54:08 INFO imstat:::: Statistics --- 2026-03-05 01:54:08 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-03-05 01:54:08 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-03-05 01:54:08 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-03-05 01:54:08 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-03-05 01:54:08 INFO imstat:::: -- Median of the pixel values [median]: -1.86648e-05 Jy/beam 2026-03-05 01:54:08 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73536e-05 Jy/beam 2026-03-05 01:54:08 INFO imstat:::: -- IQR [quartile]: 3.5639e-05 Jy/beam 2026-03-05 01:54:08 INFO imstat:::: -- First quartile [q1]: -3.45152e-05 Jy/beam 2026-03-05 01:54:08 INFO imstat:::: -- Third quartile [q3]: 1.12373e-06 Jy/beam 2026-03-05 01:54:08 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-03-05 01:54:08 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-03-05 01:54:08 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-03-05 01:54:08 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-03-05 01:54:08 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-03-05 01:54:08 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-03-05 01:54:08 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 2026-03-05 01:54:08 INFO imstat::::casa Task imstat complete. Start time: 2026-03-05 01:54:07.799256 End time: 2026-03-05 01:54:07.820027 2026-03-05 01:54:08 INFO imstat::::casa ##### End Task: imstat ##### 2026-03-05 01:54:08 INFO imstat::::casa ########################################## . ---------------------------------------------------------------------- Ran 27 tests in 1316.030s OK Generating XML reports...