2026-04-25 06:34:53 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-04-25 06:34:53 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-04-25 06:34:53 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-04-25 06:34:53 INFO ::casa 2026-04-25 06:34:53 INFO ::casa config values 2026-04-25 06:34:53 INFO ::casa agg = False 2026-04-25 06:34:53 INFO ::casa cachedir = '/home/casatest/.casa' 2026-04-25 06:34:53 INFO ::casa casaconfig_verbose = 1 2026-04-25 06:34:53 INFO ::casa colors = 'Neutral' 2026-04-25 06:34:53 INFO ::casa data_auto_update = False 2026-04-25 06:34:53 INFO ::casa data_update_interval = 1 2026-04-25 06:34:53 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-04-25 06:34:53 INFO ::casa iplog = False 2026-04-25 06:34:53 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/ipython-20260425-063448.log' 2026-04-25 06:34:53 INFO ::casa log2term = True 2026-04-25 06:34:53 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/casa-20260425-063448.log' 2026-04-25 06:34:53 INFO ::casa measures_auto_update = False 2026-04-25 06:34:53 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-04-25 06:34:53 INFO ::casa measures_site_interval = 2 2026-04-25 06:34:53 INFO ::casa measures_update_interval = 1 2026-04-25 06:34:53 INFO ::casa measurespath = '/opt/casa/data/master' 2026-04-25 06:34:53 INFO ::casa nogui = False 2026-04-25 06:34:53 INFO ::casa nologfile = False 2026-04-25 06:34:53 INFO ::casa nologger = True 2026-04-25 06:34:53 INFO ::casa pipeline = False 2026-04-25 06:34:53 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-04-25 06:34:53 INFO ::casa user_site = False 2026-04-25 06:34:53 INFO ::casa 2026-04-25 06:34:53 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-04-25 06:34:53 INFO ::casa measures version is unknown, this is probably a legacy version not installed by casaconfig 2026-04-25 06:34:53 INFO ::casa 2026-04-25 06:34:53 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-04-25 06:34:53 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/04/23/12:59, 2026/03/23/00:00:00 2026-04-25 06:34:53 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/04/23/12:59, 2026/03/23/00:00:00 2026-04-25 06:34:53 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/04/24/15:15, 2026/07/23/00:00:00 2026-04-25 06:34:53 INFO ::casa TAI_UTC (version date, last date in table (UTC)): 2026/03/27/15:15, 2017/01/01/00:00:00 Running tests... ---------------------------------------------------------------------- Using user configuration file /home/casatest/.casa/config.py No event loop hook running. Using matplotlib backend: agg CASA 6.7.4.3 -- Common Astronomy Software Applications [6.7.4.3] 2026-04-25 06:34:53 INFO phaseshift::::casa ########################################## 2026-04-25 06:34:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:34:53 INFO phaseshift::::casa phaseshift( vis='/opt/casa/data/casatestdata/unittest/phaseshift/split11.ms', outputvis='phaseshift11.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'ICRS 1h27m38.337s +5d25m38.886s'} ) 2026-04-25 06:34:54 INFO MSTransformManager::parseMsSpecParams Input file name is /opt/casa/data/casatestdata/unittest/phaseshift/split11.ms 2026-04-25 06:34:54 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:34:54 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshift11.ms 2026-04-25 06:34:54 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:34:54 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:34:54 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:34:54 INFO MSTransformManager::open Select data 2026-04-25 06:34:54 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:34:58 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-04-25 06:34:58 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 1h27m38.337s +5d25m38.886s' successfully parsed for field 0 2026-04-25 06:34:58 INFO phaseshift::::casa Shift phase center 2026-04-25 06:34:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:34:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:34:53.463793 End time: 2026-04-25 06:34:58.991702 2026-04-25 06:34:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:34:59 INFO phaseshift::::casa ########################################## .2026-04-25 06:34:59 INFO phaseshift::::casa ########################################## 2026-04-25 06:34:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:34:59 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'GALACTIC 19h53m50 40d06m00', '2': 'GALACTIC 22h01m02 40d04m03'} ) 2026-04-25 06:34:59 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-25 06:34:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:34:59 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-04-25 06:34:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:34:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:34:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:34:59 INFO MSTransformManager::open Select data 2026-04-25 06:34:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:35:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-04-25 06:35:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 19h53m50 40d06m00' successfully parsed for field 0 2026-04-25 06:35:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 22h01m02 40d04m03' successfully parsed for field 2 2026-04-25 06:35:03 INFO phaseshift::::casa Shift phase center 2026-04-25 06:35:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:35:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:34:59.073061 End time: 2026-04-25 06:35:04.726567 2026-04-25 06:35:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:35:05 INFO phaseshift::::casa ########################################## .2026-04-25 06:35:05 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:35:05 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'J2000 19h53m50 40d06m00', '3': 'J2000 19h53m50 40d06m00'} ) 2026-04-25 06:35:05 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-25 06:35:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:35:05 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-04-25 06:35:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:35:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:35:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:35:05 INFO MSTransformManager::open Select data 2026-04-25 06:35:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:35:09 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-04-25 06:35:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-04-25 06:35:09 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-04-25 06:35:09 INFO phaseshift::::casa Traceback (most recent call last): 2026-04-25 06:35:09 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-04-25 06:35:09 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-04-25 06:35:09 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:35:09 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-04-25 06:35:09 INFO phaseshift::::casa+ mtlocal.open() 2026-04-25 06:35:09 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-04-25 06:35:09 INFO phaseshift::::casa+ return self._swigobj.open() 2026-04-25 06:35:09 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:35:09 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-04-25 06:35:09 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-04-25 06:35:09 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:35:09 INFO phaseshift::::casa+ RuntimeError: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-04-25 06:35:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:35:04.830980 End time: 2026-04-25 06:35:09.364277 2026-04-25 06:35:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:35:09 INFO phaseshift::::casa ########################################## .2026-04-25 06:35:09 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:35:09 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'J2000 19h53m50 40d06m00'} ) 2026-04-25 06:35:09 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-25 06:35:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:35:09 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-04-25 06:35:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:35:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:35:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:35:09 INFO MSTransformManager::open Select data 2026-04-25 06:35:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:35:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-04-25 06:35:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-04-25 06:35:14 INFO phaseshift::::casa Shift phase center 2026-04-25 06:35:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:35:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:35:09.429901 End time: 2026-04-25 06:35:14.644540 2026-04-25 06:35:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:35:15 INFO phaseshift::::casa ########################################## .2026-04-25 06:35:15 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:35:15 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='0,2', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'1': 'J2000 19h53m50 40d06m00', '2': 'J2000 22h01m02 40d04m03'} ) 2026-04-25 06:35:15 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-25 06:35:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:35:15 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-04-25 06:35:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:35:15 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-04-25 06:35:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:35:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:35:15 INFO MSTransformManager::open Select data 2026-04-25 06:35:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:35:15 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-04-25 06:35:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-04-25 06:35:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 1 2026-04-25 06:35:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 22h01m02 40d04m03' successfully parsed for field 2 2026-04-25 06:35:19 INFO phaseshift::::casa Shift phase center 2026-04-25 06:35:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:35:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:35:14.768114 End time: 2026-04-25 06:35:19.957837 2026-04-25 06:35:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:35:20 INFO phaseshift::::casa ########################################## .2026-04-25 06:35:20 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:35:20 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='0,2', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'ICRS 19h53m50 40d06m00', '2': 'ICRS 22h01m02 40d04m03'} ) 2026-04-25 06:35:20 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-25 06:35:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:35:20 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-04-25 06:35:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:35:20 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-04-25 06:35:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:35:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:35:20 INFO MSTransformManager::open Select data 2026-04-25 06:35:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:35:20 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-04-25 06:35:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-04-25 06:35:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m50 40d06m00' successfully parsed for field 0 2026-04-25 06:35:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 22h01m02 40d04m03' successfully parsed for field 2 2026-04-25 06:35:24 INFO phaseshift::::casa Shift phase center 2026-04-25 06:35:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:35:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:35:20.069048 End time: 2026-04-25 06:35:25.182494 2026-04-25 06:35:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:35:25 INFO phaseshift::::casa ########################################## .2026-04-25 06:35:25 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:35:25 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-04-25 06:35:25 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-25 06:35:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:35:25 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-04-25 06:35:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:35:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:35:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:35:25 INFO MSTransformManager::open Select data 2026-04-25 06:35:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:35:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:35:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-04-25 06:35:29 INFO phaseshift::::casa Shift phase center 2026-04-25 06:35:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:35:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:35:25.266567 End time: 2026-04-25 06:35:30.338185 2026-04-25 06:35:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:35:30 INFO phaseshift::::casa ########################################## ..2026-04-25 06:35:31 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) Requested JD 0 is outside the range of the IERS (Earth axis data) table. 2026-04-25 06:35:31 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) + Calculations will proceed with less precision ..2026-04-25 06:35:31 SEVERE Error in QuantumHolder::fromString with input string "xxh53m50": Illegal input units or format 2026-04-25 06:35:31 SEVERE + in converting quantity from string 2026-04-25 06:35:31 SEVERE Exception Reported: Empty QuantumHolder argument for asQuantumDouble 2026-04-25 06:35:31 SEVERE Exception Reports: Empty QuantumHolder argument for asQuantumDouble 2026-04-25 06:35:31 SEVERE phaseshift::::casa *** Error measures.direction() failed for phasecenter string: BOGUS xxh53m50 40d06m00 when interpreting parameter 'phasecenter': ...2026-04-25 06:35:33 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:35:33 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='1', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-04-25 06:35:33 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-25 06:35:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:35:33 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:35:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:35:33 INFO MSTransformManager::parseDataSelParams array selection is 1 2026-04-25 06:35:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:35:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:35:33 INFO MSTransformManager::open Select data 2026-04-25 06:35:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:35:33 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-04-25 06:35:33 INFO phaseshift::::casa Traceback (most recent call last): 2026-04-25 06:35:33 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-04-25 06:35:33 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-04-25 06:35:33 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:35:33 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-04-25 06:35:33 INFO phaseshift::::casa+ mtlocal.open() 2026-04-25 06:35:33 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-04-25 06:35:33 INFO phaseshift::::casa+ return self._swigobj.open() 2026-04-25 06:35:33 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:35:33 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-04-25 06:35:33 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-04-25 06:35:33 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:35:33 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-04-25 06:35:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:35:33.021922 End time: 2026-04-25 06:35:33.079906 2026-04-25 06:35:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:35:33 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:33 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:35:33 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='0', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-04-25 06:35:33 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-25 06:35:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:35:33 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:35:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:35:33 INFO MSTransformManager::parseDataSelParams array selection is 0 2026-04-25 06:35:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:35:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:35:33 INFO MSTransformManager::open Select data 2026-04-25 06:35:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:35:36 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-04-25 06:35:36 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-04-25 06:35:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:35:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-04-25 06:35:38 INFO phaseshift::::casa Shift phase center 2026-04-25 06:35:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:35:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:35:33.081317 End time: 2026-04-25 06:35:39.023883 2026-04-25 06:35:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:35:39 INFO phaseshift::::casa ########################################## .2026-04-25 06:35:40 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:35:40 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='MODEL', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-04-25 06:35:40 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-25 06:35:40 INFO MSTransformManager::parseMsSpecParams Data column is MODEL 2026-04-25 06:35:40 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:35:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:35:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:35:40 WARN MSTransformManager::checkDataColumnsToFill MODEL_DATA column requested but not available in input MS 2026-04-25 06:35:40 INFO MSTransformManager::open Select data 2026-04-25 06:35:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:35:40 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Desired column (MODEL_DATA) not found in the input MS (/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/nep_copy.ms). 2026-04-25 06:35:40 INFO phaseshift::::casa Traceback (most recent call last): 2026-04-25 06:35:40 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-04-25 06:35:40 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-04-25 06:35:40 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:35:40 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-04-25 06:35:40 INFO phaseshift::::casa+ mtlocal.open() 2026-04-25 06:35:40 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-04-25 06:35:40 INFO phaseshift::::casa+ return self._swigobj.open() 2026-04-25 06:35:40 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:35:40 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-04-25 06:35:40 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-04-25 06:35:40 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:35:40 INFO phaseshift::::casa+ RuntimeError: Desired column (MODEL_DATA) not found in the input MS (/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/nep_copy.ms). 2026-04-25 06:35:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:35:40.010909 End time: 2026-04-25 06:35:40.046077 2026-04-25 06:35:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:35:40 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:40 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:35:40 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='DATA', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-04-25 06:35:40 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-25 06:35:40 INFO MSTransformManager::parseMsSpecParams Data column is DATA 2026-04-25 06:35:40 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:35:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:35:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:35:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:35:40 INFO MSTransformManager::open Select data 2026-04-25 06:35:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:35:43 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-04-25 06:35:43 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-04-25 06:35:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:35:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-04-25 06:35:45 INFO phaseshift::::casa Shift phase center 2026-04-25 06:35:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:35:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:35:40.047274 End time: 2026-04-25 06:35:45.887609 2026-04-25 06:35:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:35:46 INFO phaseshift::::casa ########################################## .2026-04-25 06:35:47 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:35:47 INFO phaseshift::::casa phaseshift( vis='Itziar_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='2', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 00h00m01 -29d55m40' ) 2026-04-25 06:35:47 INFO MSTransformManager::parseMsSpecParams Input file name is Itziar_copy.ms 2026-04-25 06:35:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:35:47 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:35:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:35:47 INFO MSTransformManager::parseDataSelParams field selection is 2 2026-04-25 06:35:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:35:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:35:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:35:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:35:47 INFO MSTransformManager::open Select data 2026-04-25 06:35:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:35:47 INFO MSTransformDataHandler::makeSelection 6125 out of 245000 rows are going to be considered due to the selection criteria. 2026-04-25 06:35:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:35:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 00h00m01 -29d55m40' successfully parsed 2026-04-25 06:35:50 INFO phaseshift::::casa Shift phase center 2026-04-25 06:35:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:35:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:35:46.831653 End time: 2026-04-25 06:35:50.873073 2026-04-25 06:35:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:35:51 INFO phaseshift::::casa ########################################## .2026-04-25 06:35:52 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:35:52 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='*FLUX*', array='', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-04-25 06:35:52 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-25 06:35:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:35:52 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:35:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:35:52 INFO MSTransformManager::parseDataSelParams scan intent selection is *FLUX* 2026-04-25 06:35:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:35:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:35:52 INFO MSTransformManager::open Select data 2026-04-25 06:35:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:35:52 INFO MSTransformDataHandler::makeSelection 570 out of 6270 rows are going to be considered due to the selection criteria. 2026-04-25 06:35:54 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-04-25 06:35:54 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-04-25 06:35:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:35:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-04-25 06:35:56 INFO phaseshift::::casa Shift phase center 2026-04-25 06:35:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:35:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:35:51.795125 End time: 2026-04-25 06:35:57.242577 2026-04-25 06:35:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:35:57 INFO phaseshift::::casa ########################################## .2026-04-25 06:35:58 INFO phaseshift::::casa ########################################## 2026-04-25 06:35:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:35:58 INFO phaseshift::::casa phaseshift( vis='mms_copy.mms', outputvis='phaseshiftout.ms', keepmms=False, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 05h30m48 13d31m48' ) 2026-04-25 06:35:58 INFO MSTransformManager::parseMsSpecParams Input file name is mms_copy.mms 2026-04-25 06:35:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:35:58 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:35:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:35:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:35:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:35:58 INFO MSTransformManager::open Select data 2026-04-25 06:35:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:36:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:36:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 05h30m48 13d31m48' successfully parsed 2026-04-25 06:36:01 INFO phaseshift::::casa Shift phase center 2026-04-25 06:36:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:36:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:35:58.206562 End time: 2026-04-25 06:36:02.368381 2026-04-25 06:36:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:36:02 INFO phaseshift::::casa ########################################## .2026-04-25 06:36:03 INFO phaseshift::::casa ########################################## 2026-04-25 06:36:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:36:03 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='1', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-04-25 06:36:03 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-25 06:36:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:36:03 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:36:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:36:03 INFO MSTransformManager::parseDataSelParams observation selection is 1 2026-04-25 06:36:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:36:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:36:03 INFO MSTransformManager::open Select data 2026-04-25 06:36:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:36:03 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-04-25 06:36:03 INFO phaseshift::::casa Traceback (most recent call last): 2026-04-25 06:36:03 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-04-25 06:36:03 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-04-25 06:36:03 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:36:03 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-04-25 06:36:03 INFO phaseshift::::casa+ mtlocal.open() 2026-04-25 06:36:03 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-04-25 06:36:03 INFO phaseshift::::casa+ return self._swigobj.open() 2026-04-25 06:36:03 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:36:03 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-04-25 06:36:03 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-04-25 06:36:03 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:36:03 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-04-25 06:36:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:36:03.366099 End time: 2026-04-25 06:36:03.414184 2026-04-25 06:36:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:36:03 INFO phaseshift::::casa ########################################## 2026-04-25 06:36:03 INFO phaseshift::::casa ########################################## 2026-04-25 06:36:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:36:03 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='0', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-04-25 06:36:03 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-25 06:36:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:36:03 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:36:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:36:03 INFO MSTransformManager::parseDataSelParams observation selection is 0 2026-04-25 06:36:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:36:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:36:03 INFO MSTransformManager::open Select data 2026-04-25 06:36:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:36:06 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-04-25 06:36:06 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-04-25 06:36:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:36:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-04-25 06:36:08 INFO phaseshift::::casa Shift phase center 2026-04-25 06:36:09 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:36:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:36:03.415629 End time: 2026-04-25 06:36:08.886477 2026-04-25 06:36:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:36:09 INFO phaseshift::::casa ########################################## .2026-04-25 06:36:10 INFO phaseshift::::casa ########################################## 2026-04-25 06:36:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:36:10 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-04-25 06:36:10 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-25 06:36:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:36:10 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:36:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:36:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:36:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:36:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:36:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:36:10 INFO MSTransformManager::open Select data 2026-04-25 06:36:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:36:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:36:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-04-25 06:36:13 INFO phaseshift::::casa Shift phase center 2026-04-25 06:36:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:36:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:36:09.816794 End time: 2026-04-25 06:36:15.054488 2026-04-25 06:36:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:36:15 INFO phaseshift::::casa ########################################## .2026-04-25 06:36:16 INFO phaseshift::::casa ########################################## 2026-04-25 06:36:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:36:16 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='' ) 2026-04-25 06:36:16 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: phasecenter parameter must be specified 2026-04-25 06:36:16 INFO phaseshift::::casa Traceback (most recent call last): 2026-04-25 06:36:16 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-04-25 06:36:16 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-04-25 06:36:16 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-25 06:36:16 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-3-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 31, in phaseshift 2026-04-25 06:36:16 INFO phaseshift::::casa+ raise ValueError("phasecenter parameter must be specified") 2026-04-25 06:36:16 INFO phaseshift::::casa+ ValueError: phasecenter parameter must be specified 2026-04-25 06:36:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:36:15.943171 End time: 2026-04-25 06:36:15.944475 2026-04-25 06:36:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:36:16 INFO phaseshift::::casa ########################################## 2026-04-25 06:36:16 INFO phaseshift::::casa ########################################## 2026-04-25 06:36:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:36:16 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -08d23m35' ) 2026-04-25 06:36:16 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-25 06:36:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:36:16 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:36:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:36:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:36:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:36:16 INFO MSTransformManager::open Select data 2026-04-25 06:36:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:36:19 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-04-25 06:36:19 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-04-25 06:36:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:36:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -08d23m35' successfully parsed 2026-04-25 06:36:21 INFO phaseshift::::casa Shift phase center 2026-04-25 06:36:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:36:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:36:15.945608 End time: 2026-04-25 06:36:21.690458 2026-04-25 06:36:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:36:22 INFO phaseshift::::casa ########################################## .2026-04-25 06:36:23 INFO phaseshift::::casa ########################################## 2026-04-25 06:36:23 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:36:23 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='00h06m14 -08d23m35' ) 2026-04-25 06:36:23 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-25 06:36:23 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:36:23 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:36:23 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:36:23 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:36:23 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:36:23 INFO MSTransformManager::open Select data 2026-04-25 06:36:23 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:36:25 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-04-25 06:36:25 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-04-25 06:36:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:36:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center '00h06m14 -08d23m35' successfully parsed 2026-04-25 06:36:27 INFO phaseshift::::casa Shift phase center 2026-04-25 06:36:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:36:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:36:22.646419 End time: 2026-04-25 06:36:28.167402 2026-04-25 06:36:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:36:28 INFO phaseshift::::casa ########################################## .2026-04-25 06:36:29 INFO phaseshift::::casa ########################################## 2026-04-25 06:36:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:36:29 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='post_phaseshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-04-25 06:36:29 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-25 06:36:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:36:29 INFO MSTransformManager::parseMsSpecParams Output file name is post_phaseshift.ms 2026-04-25 06:36:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:36:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:36:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:36:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:36:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:36:29 INFO MSTransformManager::open Select data 2026-04-25 06:36:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:36:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:36:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-04-25 06:36:32 INFO phaseshift::::casa Shift phase center 2026-04-25 06:36:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:36:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:36:29.107438 End time: 2026-04-25 06:36:34.285201 2026-04-25 06:36:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:36:34 INFO phaseshift::::casa ########################################## 2026-04-25 06:36:34 INFO tclean::::casa ########################################## 2026-04-25 06:36:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:36:34 INFO tclean::::casa tclean( vis='datacopy.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_pre', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:36:34 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:36:34 INFO SynthesisImagerVi2::selectData MS : datacopy.ms | [Opened in readonly mode] 2026-04-25 06:36:34 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-04-25 06:36:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-04-25 06:36:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-04-25 06:36:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:36:35 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-04-25 06:36:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_pre] with ftmachine : wprojectft 2026-04-25 06:36:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 10.98 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:36:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:36:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_pre] : hogbom 2026-04-25 06:36:35 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:36:35 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-04-25 06:36:35 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-04-25 06:36:35 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-04-25 06:36:35 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-04-25 06:37:04 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-04-25 06:37:04 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% 2026-04-25 06:37:38 INFO SIImageStore::calcSensitivity [im2_pre] Theoretical sensitivity (Jy/bm):0.00204403 2026-04-25 06:37:38 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.090282 2026-04-25 06:37:38 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-04-25 06:37:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:37:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:37:42 INFO task_tclean::SDAlgorithmBase::restore [im2_pre] : Restoring model image. 2026-04-25 06:37:42 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-04-25 06:37:46 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-04-25 06:37:46 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'] 2026-04-25 06:37:47 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:36:34.374093 End time: 2026-04-25 06:37:47.332873 2026-04-25 06:37:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:37:47 INFO tclean::::casa ########################################## 2026-04-25 06:37:47 INFO tclean::::casa ########################################## 2026-04-25 06:37:47 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:37:47 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift', imsize=2048, cell='5arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:37:47 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:37:47 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-04-25 06:37:47 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-04-25 06:37:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-04-25 06:37:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-04-25 06:37:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:37:48 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-04-25 06:37:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift] with ftmachine : wprojectft 2026-04-25 06:37:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:37:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:37:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift] : hogbom 2026-04-25 06:37:48 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:37:48 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-04-25 06:37:48 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-04-25 06:37:48 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-04-25 06:37:48 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-04-25 06:38:15 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-04-25 06:38:15 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 2026-04-25 06:38:18 INFO SIImageStore::calcSensitivity [im2_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00204403 2026-04-25 06:38:19 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.094988 2026-04-25 06:38:19 INFO SIImageStore::printBeamSet Beam : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-04-25 06:38:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:38:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:38:23 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift] : Restoring model image. 2026-04-25 06:38:23 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-04-25 06:38:24 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-04-25 06:38:24 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'] 2026-04-25 06:38:26 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:37:47.380695 End time: 2026-04-25 06:38:25.574588 2026-04-25 06:38:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:38:26 INFO tclean::::casa ########################################## 2026-04-25 06:38:26 INFO tclean::::casa ########################################## 2026-04-25 06:38:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:38:26 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift_tclean_phasecenter', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:38:26 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:38:26 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-04-25 06:38:26 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-04-25 06:38:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-04-25 06:38:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-04-25 06:38:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:38:26 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-04-25 06:38:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift_tclean_phasecenter] with ftmachine : wprojectft 2026-04-25 06:38:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 10.98 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:38:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:38:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift_tclean_phasecenter] : hogbom 2026-04-25 06:38:26 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:38:26 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-04-25 06:38:26 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-04-25 06:38:26 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-04-25 06:38:26 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-04-25 06:38:52 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-04-25 06:38:52 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 2026-04-25 06:38:55 INFO SIImageStore::calcSensitivity [im2_post_phaseshift_tclean_phasecenter] Theoretical sensitivity (Jy/bm):0.00204403 2026-04-25 06:38:55 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.091227 2026-04-25 06:38:55 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-04-25 06:38:55 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:38:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:38:59 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift_tclean_phasecenter] : Restoring model image. 2026-04-25 06:38:59 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-04-25 06:39:00 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-04-25 06:39:00 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'] 2026-04-25 06:39:01 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:38:25.610843 End time: 2026-04-25 06:39:01.245150 2026-04-25 06:39:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:39:01 INFO tclean::::casa ########################################## Image value at source locations Original MS : {'unit': 'Jy/beam', 'value': 1.0387226343154907} and {'unit': 'Jy/beam', 'value': 5.590171813964844} Phase shifted MS : {'unit': 'Jy/beam', 'value': 1.038696050643921} and {'unit': 'Jy/beam', 'value': 5.589254856109619} .2026-04-25 06:39:02 INFO phaseshift::::casa ########################################## 2026-04-25 06:39:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:39:02 INFO phaseshift::::casa phaseshift( vis='ngc_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='1', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 23h11m54 61d10m54' ) 2026-04-25 06:39:02 INFO MSTransformManager::parseMsSpecParams Input file name is ngc_copy.ms 2026-04-25 06:39:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:39:02 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:39:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:39:02 INFO MSTransformManager::parseDataSelParams spw selection is 1 2026-04-25 06:39:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:39:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:39:02 INFO MSTransformManager::initDataSelectionParams Selected SPWs Ids are Axis Lengths: [1, 4] (NB: Matrix in Row/Column order) 2026-04-25 06:39:02 INFO MSTransformManager::initDataSelectionParams+ [1, 0, 4, 1] 2026-04-25 06:39:02 INFO MSTransformManager::open Select data 2026-04-25 06:39:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:39:02 INFO MSTransformDataHandler::makeSelection 13338 out of 26676 rows are going to be considered due to the selection criteria. 2026-04-25 06:39:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:39:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 23h11m54 61d10m54' successfully parsed 2026-04-25 06:39:06 INFO phaseshift::::casa Shift phase center 2026-04-25 06:39:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:39:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:39:02.441055 End time: 2026-04-25 06:39:06.581057 2026-04-25 06:39:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:39:07 INFO phaseshift::::casa ########################################## .2026-04-25 06:39:08 INFO phaseshift::::casa ########################################## 2026-04-25 06:39:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:39:08 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-04-25 06:39:08 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-25 06:39:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:39:08 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-25 06:39:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:39:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:39:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:39:08 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:39:08 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:39:08 INFO MSTransformManager::open Select data 2026-04-25 06:39:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:39:11 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:39:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-04-25 06:39:11 INFO phaseshift::::casa Shift phase center 2026-04-25 06:39:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:39:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:39:07.574963 End time: 2026-04-25 06:39:12.886308 2026-04-25 06:39:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:39:13 INFO phaseshift::::casa ########################################## .2026-04-25 06:39:13 INFO phaseshift::::casa ########################################## 2026-04-25 06:39:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:39:13 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='0', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-04-25 06:39:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:39:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:39:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:39:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:39:13 INFO MSTransformManager::parseDataSelParams field selection is 0 2026-04-25 06:39:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:39:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:39:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:39:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:39:13 INFO MSTransformManager::open Select data 2026-04-25 06:39:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:39:13 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-04-25 06:39:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:39:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-04-25 06:39:16 INFO phaseshift::::casa Shift phase center 2026-04-25 06:39:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:39:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:39:13.353774 End time: 2026-04-25 06:39:16.614197 2026-04-25 06:39:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:39:17 INFO phaseshift::::casa ########################################## 2026-04-25 06:39:17 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-04-25 06:39:17 INFO tclean::::casa ########################################## 2026-04-25 06:39:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:39:17 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:39:17 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:39:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:39:17 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-04-25 06:39:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:39:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:39:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:39:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-04-25 06:39:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:39:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.98 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:39:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:39:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:39:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:39:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-04-25 06:39:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022746 2026-04-25 06:39:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-04-25 06:39:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:39:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:39:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:39:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:39:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:39:20 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:39:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:39:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-04-25 06:39:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:39:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:39:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:39:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:39:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:39:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-04-25 06:39:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-04-25 06:39:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:39:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:39:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-04-25 06:39:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:39:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-04-25 06:39:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-04-25 06:39:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:39:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:39:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-04-25 06:39:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:39:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-04-25 06:39:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-04-25 06:39:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:39:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:39:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-04-25 06:39:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:39:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:39:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:39:26 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-04-25 06:39:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:39:27 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:39:16.780572 End time: 2026-04-25 06:39:27.081067 2026-04-25 06:39:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:39:27 INFO tclean::::casa ########################################## 2026-04-25 06:39:27 INFO imstat::::casa ########################################## 2026-04-25 06:39:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:39:27 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:39:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:39:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:39:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:39:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:39:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:39:27 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz to 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz) 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-04-25 06:39:27 INFO imstat:::: Values --- 2026-04-25 06:39:27 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-04-25 06:39:27 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:39:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:39:27 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-04-25 06:39:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-04-25 06:39:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-04-25 06:39:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-04-25 06:39:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-04-25 06:39:27 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-04-25 06:39:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-04-25 06:39:27 INFO imstat:::: Statistics --- 2026-04-25 06:39:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-04-25 06:39:27 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-04-25 06:39:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-04-25 06:39:27 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-04-25 06:39:27 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-04-25 06:39:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-04-25 06:39:27 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-04-25 06:39:27 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-04-25 06:39:27 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:39:27 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.059610e+02 9.246232e-03 1.521305e-01 1.518505e-01 -1.228298e-04 4.999997e+00 2026-04-25 06:39:27 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:39:27.102789 End time: 2026-04-25 06:39:27.128945 2026-04-25 06:39:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:39:27 INFO imstat::::casa ########################################## 2026-04-25 06:39:27 INFO phaseshift::::casa ########################################## 2026-04-25 06:39:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:39:27 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='fake', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-04-25 06:39:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:39:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:39:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:39:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:39:27 INFO MSTransformManager::parseDataSelParams field selection is fake 2026-04-25 06:39:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:39:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:39:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:39:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:39:27 INFO MSTransformManager::open Select data 2026-04-25 06:39:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:39:27 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-04-25 06:39:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:39:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-04-25 06:39:30 INFO phaseshift::::casa Shift phase center 2026-04-25 06:39:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:39:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:39:27.141079 End time: 2026-04-25 06:39:30.987939 2026-04-25 06:39:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:39:31 INFO phaseshift::::casa ########################################## 2026-04-25 06:39:31 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-04-25 06:39:31 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-04-25 06:39:31 INFO tclean::::casa ########################################## 2026-04-25 06:39:31 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:39:31 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:39:31 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:39:31 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:39:31 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-04-25 06:39:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:39:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:39:31 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:39:31 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-04-25 06:39:31 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:39:31 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.97 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:39:31 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:39:31 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:39:31 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:39:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-04-25 06:39:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023432 2026-04-25 06:39:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-04-25 06:39:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:39:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:39:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:39:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:39:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:39:34 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:39:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:39:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-04-25 06:39:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:39:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:39:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:39:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:39:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:39:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-04-25 06:39:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-04-25 06:39:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:39:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:39:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-04-25 06:39:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:39:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-04-25 06:39:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-04-25 06:39:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:39:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:39:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-04-25 06:39:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:39:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-04-25 06:39:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-04-25 06:39:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:39:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:39:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-04-25 06:39:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:39:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:39:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:39:40 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-04-25 06:39:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:39:41 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:39:31.040940 End time: 2026-04-25 06:39:41.240945 2026-04-25 06:39:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:39:41 INFO tclean::::casa ########################################## 2026-04-25 06:39:41 INFO imstat::::casa ########################################## 2026-04-25 06:39:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:39:41 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:39:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:39:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:39:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:39:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:39:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:39:41 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz to 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz) 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-04-25 06:39:41 INFO imstat:::: Values --- 2026-04-25 06:39:41 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-04-25 06:39:41 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:39:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:39:41 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-04-25 06:39:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-04-25 06:39:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-04-25 06:39:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-04-25 06:39:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-04-25 06:39:41 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-04-25 06:39:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-04-25 06:39:41 INFO imstat:::: Statistics --- 2026-04-25 06:39:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-04-25 06:39:41 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-04-25 06:39:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-04-25 06:39:41 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-04-25 06:39:41 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-04-25 06:39:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-04-25 06:39:41 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-04-25 06:39:41 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-04-25 06:39:41 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:39:41 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.059610e+02 9.246232e-03 1.521305e-01 1.518505e-01 -1.228298e-04 4.999997e+00 2026-04-25 06:39:41 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:39:41.247395 End time: 2026-04-25 06:39:41.277414 2026-04-25 06:39:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:39:41 INFO imstat::::casa ########################################## 2026-04-25 06:39:41 INFO phaseshift::::casa ########################################## 2026-04-25 06:39:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:39:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-04-25 06:39:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:39:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:39:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:39:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:39:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:39:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:39:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:39:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:39:41 INFO MSTransformManager::open Select data 2026-04-25 06:39:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:39:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:39:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-04-25 06:39:44 INFO phaseshift::::casa Shift phase center 2026-04-25 06:39:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:39:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:39:41.290107 End time: 2026-04-25 06:39:44.755982 2026-04-25 06:39:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:39:45 INFO phaseshift::::casa ########################################## 2026-04-25 06:39:45 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-04-25 06:39:45 INFO tclean::::casa ########################################## 2026-04-25 06:39:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:39:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:39:45 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:39:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:39:45 INFO SynthesisImagerVi2::selectData NRows selected : 7020 2026-04-25 06:39:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:39:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:39:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:39:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:39:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:39:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.97 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:39:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:39:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:39:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:39:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00843949 2026-04-25 06:39:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021228 2026-04-25 06:39:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-04-25 06:39:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:39:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:39:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:39:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:39:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:39:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:39:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6069034934043884, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:39:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.606903, CycleNiter=20, Gain=0.3 2026-04-25 06:39:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:39:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:39:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:39:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:39:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07140088081359863, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:39:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0714009, CycleNiter=14, Gain=0.3 2026-04-25 06:39:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-04-25 06:39:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:39:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:39:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-04-25 06:39:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00840018317103386, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:39:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00840018, CycleNiter=8, Gain=0.3 2026-04-25 06:39:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-04-25 06:39:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:39:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:39:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814189, over full image : 0.00814189 2026-04-25 06:39:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009882674785330892, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:39:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000988267, CycleNiter=2, Gain=0.3 2026-04-25 06:39:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814189->0.00279267, Reached cycleniter. 2026-04-25 06:39:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:39:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:39:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0027928, over full image : 0.0027928 2026-04-25 06:39:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:39:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:39:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:39:56 INFO SIImageStore::restore Beam for chan : 0 : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-04-25 06:39:56 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'] 2026-04-25 06:39:57 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:39:44.817479 End time: 2026-04-25 06:39:57.454138 2026-04-25 06:39:57 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:39:57 INFO tclean::::casa ########################################## 2026-04-25 06:39:57 INFO imstat::::casa ########################################## 2026-04-25 06:39:57 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:39:57 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 ) 2026-04-25 06:39:57 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:39:57 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:39:57 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:39:57 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:39:57 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:39:57 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.888, +39.49.25.864, I, 999981604.64Hz to 19:52:21.069, +40.23.25.888, I, 999981604.64Hz) 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 999981604.64Hz 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 999981604.64Hz 2026-04-25 06:39:57 INFO imstat:::: Values --- 2026-04-25 06:39:57 INFO imstat:::: -- flux density [flux]: 4.99444 Jy 2026-04-25 06:39:57 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:39:57 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:39:57 INFO imstat:::: -- minimum value [min]: -9.70533e-05 Jy/beam 2026-04-25 06:39:57 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-04-25 06:39:57 INFO imstat:::: -- position of min value (pixel) [minpos]: [158, 70, 0, 0] 2026-04-25 06:39:57 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981604.64Hz 2026-04-25 06:39:57 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:29.120, +39.58.47.882, I, 999981604.64Hz 2026-04-25 06:39:57 INFO imstat:::: -- Sum of pixel values [sum]: 610.203 Jy/beam 2026-04-25 06:39:57 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1527.26 Jy/beam.Jy/beam 2026-04-25 06:39:57 INFO imstat:::: Statistics --- 2026-04-25 06:39:57 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00931096 Jy/beam 2026-04-25 06:39:57 INFO imstat:::: -- Variance of the pixel values : 0.0232178 Jy/beam 2026-04-25 06:39:57 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152374 Jy/beam 2026-04-25 06:39:57 INFO imstat:::: -- Root mean square [rms]: 0.152657 Jy/beam 2026-04-25 06:39:57 INFO imstat:::: -- Median of the pixel values [median]: -1.85752e-05 Jy/beam 2026-04-25 06:39:57 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.83975e-05 Jy/beam 2026-04-25 06:39:57 INFO imstat:::: -- IQR [quartile]: 3.74524e-05 Jy/beam 2026-04-25 06:39:57 INFO imstat:::: -- First quartile [q1]: -3.53147e-05 Jy/beam 2026-04-25 06:39:57 INFO imstat:::: -- Third quartile [q3]: 2.13765e-06 Jy/beam 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:39:57 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.102032e+02 9.310961e-03 1.526569e-01 1.523738e-01 -9.705327e-05 4.999997e+00 2026-04-25 06:39:57 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:39:57.460585 End time: 2026-04-25 06:39:57.490550 2026-04-25 06:39:57 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:39:57 INFO imstat::::casa ########################################## 2026-04-25 06:39:58 INFO phaseshift::::casa ########################################## 2026-04-25 06:39:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:39:58 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='1', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 50.108888889deg' ) 2026-04-25 06:39:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:39:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:39:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:39:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:39:58 INFO MSTransformManager::parseDataSelParams field selection is 1 2026-04-25 06:39:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:39:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:39:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:39:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:39:58 INFO MSTransformManager::open Select data 2026-04-25 06:39:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:39:58 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-04-25 06:40:00 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:40:00 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-04-25 06:40:00 INFO phaseshift::::casa Shift phase center 2026-04-25 06:40:01 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:40:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:39:57.504044 End time: 2026-04-25 06:40:01.309889 2026-04-25 06:40:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:40:01 INFO phaseshift::::casa ########################################## 2026-04-25 06:40:01 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-04-25 06:40:02 INFO tclean::::casa ########################################## 2026-04-25 06:40:02 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:40:02 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:40:02 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:40:02 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:40:02 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-04-25 06:40:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:40:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:40:02 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:40:02 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-04-25 06:40:02 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:40:02 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.97 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:40:02 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:40:02 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:40:02 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:40:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-04-25 06:40:03 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021662 2026-04-25 06:40:03 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-04-25 06:40:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:40:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:40:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-04-25 06:40:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:40:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:40:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-04-25 06:40:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:40:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-04-25 06:40:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-04-25 06:40:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:40:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:40:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-04-25 06:40:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:40:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:40:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:40:08 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-04-25 06:40:08 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'] 2026-04-25 06:40:10 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:40:01.507943 End time: 2026-04-25 06:40:09.680006 2026-04-25 06:40:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:40:10 INFO tclean::::casa ########################################## 2026-04-25 06:40:10 INFO imstat::::casa ########################################## 2026-04-25 06:40:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:40:10 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:40:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:40:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:40:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:40:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:40:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:40:10 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz to 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz) 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-04-25 06:40:10 INFO imstat:::: Values --- 2026-04-25 06:40:10 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-04-25 06:40:10 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:40:10 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-04-25 06:40:10 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-04-25 06:40:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-04-25 06:40:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-04-25 06:40:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-04-25 06:40:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-04-25 06:40:10 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-04-25 06:40:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-04-25 06:40:10 INFO imstat:::: Statistics --- 2026-04-25 06:40:10 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-04-25 06:40:10 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-04-25 06:40:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-04-25 06:40:10 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-04-25 06:40:10 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-04-25 06:40:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-04-25 06:40:10 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-04-25 06:40:10 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-04-25 06:40:10 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:40:10 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 -2.993095e+01 -4.567100e-04 5.968411e-02 5.968282e-02 -1.468002e-01 2.858716e-01 2026-04-25 06:40:10 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:40:09.686534 End time: 2026-04-25 06:40:09.725269 2026-04-25 06:40:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:40:10 INFO imstat::::casa ########################################## 2026-04-25 06:40:10 INFO phaseshift::::casa ########################################## 2026-04-25 06:40:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:40:10 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='pretend', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 50.108888889deg' ) 2026-04-25 06:40:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:40:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:40:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:40:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:40:10 INFO MSTransformManager::parseDataSelParams field selection is pretend 2026-04-25 06:40:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:40:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:40:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:40:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:40:10 INFO MSTransformManager::open Select data 2026-04-25 06:40:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:40:10 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-04-25 06:40:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:40:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-04-25 06:40:13 INFO phaseshift::::casa Shift phase center 2026-04-25 06:40:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:40:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:40:09.738552 End time: 2026-04-25 06:40:13.445372 2026-04-25 06:40:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:40:13 INFO phaseshift::::casa ########################################## 2026-04-25 06:40:13 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-04-25 06:40:13 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-04-25 06:40:13 INFO tclean::::casa ########################################## 2026-04-25 06:40:13 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:40:13 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:40:13 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:40:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:40:14 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-04-25 06:40:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:40:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:40:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:40:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-04-25 06:40:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:40:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.97 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:40:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:40:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:40:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:40:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-04-25 06:40:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020804 2026-04-25 06:40:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-04-25 06:40:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:40:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:40:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-04-25 06:40:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:40:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:40:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-04-25 06:40:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:40:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-04-25 06:40:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-04-25 06:40:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:40:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:40:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-04-25 06:40:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:40:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:40:18 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:40:19 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-04-25 06:40:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:40:20 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:40:13.497625 End time: 2026-04-25 06:40:20.369537 2026-04-25 06:40:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:40:20 INFO tclean::::casa ########################################## 2026-04-25 06:40:20 INFO imstat::::casa ########################################## 2026-04-25 06:40:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:40:20 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:40:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:40:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:40:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:40:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:40:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:40:20 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz to 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz) 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-04-25 06:40:20 INFO imstat:::: Values --- 2026-04-25 06:40:20 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-04-25 06:40:20 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:40:20 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-04-25 06:40:20 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-04-25 06:40:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-04-25 06:40:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-04-25 06:40:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-04-25 06:40:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-04-25 06:40:20 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-04-25 06:40:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-04-25 06:40:20 INFO imstat:::: Statistics --- 2026-04-25 06:40:20 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-04-25 06:40:20 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-04-25 06:40:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-04-25 06:40:20 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-04-25 06:40:20 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-04-25 06:40:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-04-25 06:40:20 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-04-25 06:40:20 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-04-25 06:40:20 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:40:20 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 -2.993095e+01 -4.567100e-04 5.968411e-02 5.968282e-02 -1.468002e-01 2.858716e-01 2026-04-25 06:40:20 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:40:20.375763 End time: 2026-04-25 06:40:20.406307 2026-04-25 06:40:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:40:20 INFO imstat::::casa ########################################## .2026-04-25 06:40:21 INFO tclean::::casa ########################################## 2026-04-25 06:40:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:40:21 INFO tclean::::casa tclean( vis='sim_data.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_orig', imsize=2048, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:40:21 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:40:21 INFO SynthesisImagerVi2::selectData MS : sim_data.ms | [Opened in readonly mode] 2026-04-25 06:40:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:40:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-04-25 06:40:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-04-25 06:40:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:40:21 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [9.99981e+08] at [0] with increment [1e+08] 2026-04-25 06:40:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_orig] with ftmachine : wprojectft 2026-04-25 06:40:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 10.97 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:40:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:40:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_orig] : hogbom 2026-04-25 06:40:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:40:21 INFO task_tclean::WPConvFunc::findConvFunction W projection using 128 planes 2026-04-25 06:40:21 INFO task_tclean::WPConvFunc::findConvFunction Using maximum possible W = 6445.78 (wavelengths) 2026-04-25 06:40:21 INFO task_tclean::WPConvFunc::findConvFunction Typical wavelength = 0.299799 (m) 2026-04-25 06:40:21 INFO task_tclean::WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.399639 wavelengths per pixel 2026-04-25 06:40:47 INFO task_tclean::WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 48, 48, 48, 48, 52, 52, 52, 52, 52, 56, 56, 56, 56, 60, 60, 60, 60, 64, 64, 64, 64, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 80, 80, 80, 80, 84, 84, 84, 88, 88, 88, 92, 92, 92, 96, 96, 96, 100, 100, 100, 104, 104, 108, 108, 108, 112, 112, 112, 116, 116] pixels in Fourier plane 2026-04-25 06:40:47 INFO task_tclean::WPConvFunc::findConvFunction Memory used in gridding function = 14 MB from maximum 15884 MB 2026-04-25 06:40:49 INFO task_tclean::SIImageStore::calcSensitivity [im_orig] Theoretical sensitivity (Jy/bm):0.00889437 2026-04-25 06:40:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.087657 2026-04-25 06:40:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-04-25 06:40:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:40:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:40:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 4.94899 2026-04-25 06:40:53 INFO SynthesisDeconvolver::setupMask [im_orig] Initializing new mask to 1.0 for the full image 2026-04-25 06:40:53 INFO SynthesisDeconvolver::setupMask [im_orig] Number of pixels in the clean mask : 4.1943e+06 out of a total of 4.1943e+06 pixels. [ 100 % ] 2026-04-25 06:40:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 4.94899, over full image : 4.94899 2026-04-25 06:40:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.5971387624740601, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:40:53 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.597139, CycleNiter=20, Gain=0.3 2026-04-25 06:40:55 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=0->4.6028, peakres=4.94899->0.435227, Reached cyclethreshold. 2026-04-25 06:40:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 7 iterations. 2026-04-25 06:40:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:40:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.45574, over full image : 0.45574 2026-04-25 06:40:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 13, 'cyclethreshold': 0.05498892068862915, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:40:58 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.0549889, CycleNiter=13, Gain=0.3 2026-04-25 06:40:59 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=4.6028->5.02619, peakres=0.45574->0.0435268, Reached cyclethreshold. 2026-04-25 06:40:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 14 iterations. 2026-04-25 06:40:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:41:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0416506, over full image : 0.0416506 2026-04-25 06:41:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 6, 'cyclethreshold': 0.005025508347898722, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:41:03 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.00502551, CycleNiter=6, Gain=0.3 2026-04-25 06:41:04 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->6 [6], model=5.02619->5.04001, peakres=0.0416506->0.0226678, Reached cycleniter. 2026-04-25 06:41:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:41:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:41:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.022671, over full image : 0.022671 2026-04-25 06:41:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:41:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:41:07 INFO SDAlgorithmBase::restore [im_orig] : Restoring model image. 2026-04-25 06:41:08 INFO SIImageStore::restore Beam for chan : 0 : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-04-25 06:41:09 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'] 2026-04-25 06:41:10 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:40:20.687711 End time: 2026-04-25 06:41:10.084503 2026-04-25 06:41:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:41:10 INFO tclean::::casa ########################################## 2026-04-25 06:41:10 INFO imstat::::casa ########################################## 2026-04-25 06:41:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:41:10 INFO imstat::::casa imstat( imagename='im_orig.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:41:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:41:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:41:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:41:10 INFO imstat::image::statistics Determining stats for image im_orig.image 2026-04-25 06:41:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:41:10 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [2047, 2047, 0, 0] (20:11:05.220, +38.21.11.967, I, 999980841.3Hz to 19:47:03.322, +42.54.02.996, I, 999980841.3Hz) 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [2047, 2047, 0, 0] 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 20:11:05.220, +38.21.11.967, I, 999980841.3Hz 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:47:03.322, +42.54.02.996, I, 999980841.3Hz 2026-04-25 06:41:10 INFO imstat:::: Values --- 2026-04-25 06:41:10 INFO imstat:::: -- flux density [flux]: 5.2713 Jy 2026-04-25 06:41:10 INFO imstat:::: -- number of points [npts]: 4.1943e+06 2026-04-25 06:41:10 INFO imstat:::: -- maximum value [max]: 4.97713 Jy/beam 2026-04-25 06:41:10 INFO imstat:::: -- minimum value [min]: -0.022671 Jy/beam 2026-04-25 06:41:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [1509, 773, 0, 0] 2026-04-25 06:41:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [1708, 965, 0, 0] 2026-04-25 06:41:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.302, +40.06.02.372, I, 999980841.3Hz 2026-04-25 06:41:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:51:28.525, +40.31.07.260, I, 999980841.3Hz 2026-04-25 06:41:10 INFO imstat:::: -- Sum of pixel values [sum]: 641.87 Jy/beam 2026-04-25 06:41:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1619.58 Jy/beam.Jy/beam 2026-04-25 06:41:10 INFO imstat:::: Statistics --- 2026-04-25 06:41:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.000153034 Jy/beam 2026-04-25 06:41:10 INFO imstat:::: -- Variance of the pixel values : 0.000386116 Jy/beam 2026-04-25 06:41:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0196498 Jy/beam 2026-04-25 06:41:10 INFO imstat:::: -- Root mean square [rms]: 0.0196504 Jy/beam 2026-04-25 06:41:10 INFO imstat:::: -- Median of the pixel values [median]: 4.62212e-06 Jy/beam 2026-04-25 06:41:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.003161 Jy/beam 2026-04-25 06:41:10 INFO imstat:::: -- IQR [quartile]: 0.00632194 Jy/beam 2026-04-25 06:41:10 INFO imstat:::: -- First quartile [q1]: -0.00315522 Jy/beam 2026-04-25 06:41:10 INFO imstat:::: -- Third quartile [q3]: 0.00316673 Jy/beam 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:41:10 INFO imstat::ImageStatsCalculator::statistics 4.194304e+06 6.418700e+02 1.530337e-04 1.965042e-02 1.964982e-02 -2.267099e-02 4.977134e+00 2026-04-25 06:41:10 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:41:10.090554 End time: 2026-04-25 06:41:10.433793 2026-04-25 06:41:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:41:10 INFO imstat::::casa ########################################## 2026-04-25 06:41:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:41:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:41:11 INFO ImageRegion::fromRecord+ [1499, 763, 0, 0] to [1519, 783, 0, 0] (19:53:57.382, +40.04.43.647, I, 999980841.3Hz to 19:53:43.216, +40.07.21.070, I, 999980841.3Hz) 2026-04-25 06:41:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:41:11 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:41:11 2026****** 2026-04-25 06:41:11 INFO ImageFitter::fit+ 2026-04-25 06:41:11 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:41:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_orig.image 2026-04-25 06:41:11 INFO ImageFitter::fit+ --- region: 2026-04-25 06:41:11 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:41:11 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:41:11 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:41:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:41:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:41:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:41:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:41:11 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.843, +40.05.23.013 to 19:53:46.759, +40.06.41.724) 2026-04-25 06:41:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29832 Jy 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00459192 Jy 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85855 Jy 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00458731 Jy 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ Fit on im_orig.image component 0 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.9885 +/- 0.0032 s (0.0367 arcsec along great circle) 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.0594 +/- 0.0281 arcsec 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- ra: 1509.4535 +/- 0.0046 pixels 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- dec: 772.7181 +/- 0.0035 pixels 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.4778 +/- 0.0014 arcmin 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.2915 +/- 0.0011 arcmin 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.42 +/- 0.26 deg 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.70 arcsec 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.54 arcsec 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- position angle: -89.60 deg 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ Component is a point source 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ An upper limit on its size cannot be determined 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.0049 +/- 0.0079 Jy 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- Peak: 5.0102 +/- 0.0046 Jy/beam 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:41:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9808 MHz (29.97982 cm) 2026-04-25 06:41:11 INFO phaseshift::::casa ########################################## 2026-04-25 06:41:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:41:11 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-04-25 06:41:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:41:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:41:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:41:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:41:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:41:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:41:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:41:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:41:11 INFO MSTransformManager::open Select data 2026-04-25 06:41:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:41:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:41:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-04-25 06:41:14 INFO phaseshift::::casa Shift phase center 2026-04-25 06:41:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:41:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:41:10.556872 End time: 2026-04-25 06:41:14.924430 2026-04-25 06:41:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:41:15 INFO phaseshift::::casa ########################################## 2026-04-25 06:41:15 INFO tclean::::casa ########################################## 2026-04-25 06:41:15 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:41:15 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 ) 2026-04-25 06:41:15 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:41:15 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:41:15 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:41:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:41:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:41:15 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:41:15 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:41:15 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:41:15 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:41:15 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:41:15 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:41:15 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:41:16 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:41:16 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023066 2026-04-25 06:41:16 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:41:16 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:41:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:41:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:41:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:41:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:41:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:41:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:41:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:41:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:41:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:41:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:41:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:41:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:41:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:41:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:41:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:41:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:41:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:41:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:41:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:41:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:41:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:41:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:41:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:41:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:41:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:41:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:41:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:41:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:41:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:41:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:41:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:41:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:41:28 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:41:29 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'] 2026-04-25 06:41:30 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:41:15.030231 End time: 2026-04-25 06:41:30.040446 2026-04-25 06:41:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:41:30 INFO tclean::::casa ########################################## 2026-04-25 06:41:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:41:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:41:30 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:41:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:41:30 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:41:30 2026****** 2026-04-25 06:41:30 INFO ImageFitter::fit+ 2026-04-25 06:41:30 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:41:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:41:30 INFO ImageFitter::fit+ --- region: 2026-04-25 06:41:30 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:41:30 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:41:30 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:41:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:41:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:41:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:41:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:41:30 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:41:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:41:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:41:30 INFO imstat::::casa ########################################## 2026-04-25 06:41:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:41:30 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:41:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:41:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:41:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:41:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:41:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:41:30 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:41:30 INFO imstat:::: Values --- 2026-04-25 06:41:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:41:30 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:41:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:41:30 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-04-25 06:41:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:41:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:41:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:41:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:41:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:41:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:41:30 INFO imstat:::: Statistics --- 2026-04-25 06:41:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:41:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:41:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:41:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:41:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-04-25 06:41:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-04-25 06:41:30 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-04-25 06:41:30 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-04-25 06:41:30 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:41:30 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-04-25 06:41:30 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:41:30.091425 End time: 2026-04-25 06:41:30.119580 2026-04-25 06:41:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:41:30 INFO imstat::::casa ########################################## 2026-04-25 06:41:30 INFO phaseshift::::casa ########################################## 2026-04-25 06:41:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:41:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 02:40:24.0000' ) 2026-04-25 06:41:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:41:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:41:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:41:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:41:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:41:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:41:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:41:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:41:30 INFO MSTransformManager::open Select data 2026-04-25 06:41:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:41:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:41:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 02:40:24.0000' successfully parsed 2026-04-25 06:41:33 INFO phaseshift::::casa Shift phase center 2026-04-25 06:41:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:41:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:41:30.133315 End time: 2026-04-25 06:41:34.490814 2026-04-25 06:41:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:41:34 INFO phaseshift::::casa ########################################## 2026-04-25 06:41:35 INFO tclean::::casa ########################################## 2026-04-25 06:41:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:41:35 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 ) 2026-04-25 06:41:35 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:41:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:41:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:41:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:41:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:41:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:41:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:41:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:41:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:41:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:41:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:41:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:41:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:41:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02943 2026-04-25 06:41:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:41:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:41:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:41:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:41:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:41:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:41:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:41:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:41:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:41:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:41:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:41:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:41:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:41:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:41:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:41:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:41:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:41:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:41:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:41:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:41:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:41:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:41:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:41:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:41:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:41:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:41:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:41:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:41:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:41:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:41:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:41:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:41:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:41:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:41:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:41:46 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'] 2026-04-25 06:41:47 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:41:34.522001 End time: 2026-04-25 06:41:47.344020 2026-04-25 06:41:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:41:47 INFO tclean::::casa ########################################## 2026-04-25 06:41:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:41:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:41:47 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:41:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:41:47 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:41:47 2026****** 2026-04-25 06:41:47 INFO ImageFitter::fit+ 2026-04-25 06:41:47 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:41:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:41:47 INFO ImageFitter::fit+ --- region: 2026-04-25 06:41:47 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:41:47 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:41:47 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:41:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:41:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:41:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:41:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:41:47 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) 2026-04-25 06:41:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:41:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:41:47 INFO imstat::::casa ########################################## 2026-04-25 06:41:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:41:47 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:41:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:41:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:41:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:41:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:41:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:41:47 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:41:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:41:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:41:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:41:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:41:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:41:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:41:47 INFO imstat:::: Values --- 2026-04-25 06:41:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:41:47 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:41:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:41:47 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-04-25 06:41:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:41:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:41:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:41:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:41:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:41:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:41:47 INFO imstat:::: Statistics --- 2026-04-25 06:41:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:41:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:41:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:41:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:41:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-04-25 06:41:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-04-25 06:41:47 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-04-25 06:41:47 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-04-25 06:41:47 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-04-25 06:41:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:41:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:41:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:41:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:41:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:41:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:41:47 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 2026-04-25 06:41:47 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:41:47.398443 End time: 2026-04-25 06:41:47.437140 2026-04-25 06:41:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:41:47 INFO imstat::::casa ########################################## 2026-04-25 06:41:47 INFO phaseshift::::casa ########################################## 2026-04-25 06:41:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:41:47 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 19h53m50 40.100000000deg' ) 2026-04-25 06:41:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:41:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:41:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:41:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:41:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:41:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:41:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:41:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:41:47 INFO MSTransformManager::open Select data 2026-04-25 06:41:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:41:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:41:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.100000000deg' successfully parsed 2026-04-25 06:41:51 INFO phaseshift::::casa Shift phase center 2026-04-25 06:41:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:41:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:41:47.451696 End time: 2026-04-25 06:41:51.646333 2026-04-25 06:41:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:41:52 INFO phaseshift::::casa ########################################## 2026-04-25 06:41:52 INFO tclean::::casa ########################################## 2026-04-25 06:41:52 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:41:52 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:41:52 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:41:52 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:41:52 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:41:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:41:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:41:52 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:41:52 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:41:52 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:41:52 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:41:52 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:41:52 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:41:52 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:41:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:41:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023291 2026-04-25 06:41:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:41:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:41:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:41:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:41:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:41:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:41:55 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:41:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:41:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:41:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:41:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:41:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:41:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:41:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:41:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:41:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:41:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:41:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:41:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:41:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:41:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:41:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:41:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:41:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:42:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:42:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:42:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:42:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:42:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:42:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:42:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:42:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:42:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:42:02 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:42:03 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'] 2026-04-25 06:42:04 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:41:51.675310 End time: 2026-04-25 06:42:03.935445 2026-04-25 06:42:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:42:04 INFO tclean::::casa ########################################## 2026-04-25 06:42:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:42:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:42:04 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) 2026-04-25 06:42:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:42:04 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:42:04 2026****** 2026-04-25 06:42:04 INFO ImageFitter::fit+ 2026-04-25 06:42:04 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:42:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:42:04 INFO ImageFitter::fit+ --- region: 2026-04-25 06:42:04 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:42:04 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:42:04 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:42:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:42:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:42:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:42:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:42:04 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) 2026-04-25 06:42:04 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:42:04 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:42:04 INFO imstat::::casa ########################################## 2026-04-25 06:42:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:42:04 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 ) 2026-04-25 06:42:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:42:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:42:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:42:04 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:42:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:42:04 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) 2026-04-25 06:42:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:42:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:42:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:42:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:42:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:42:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:42:04 INFO imstat:::: Values --- 2026-04-25 06:42:04 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:42:04 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:42:04 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:42:04 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-04-25 06:42:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:42:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:42:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:42:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:42:04 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:42:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:42:04 INFO imstat:::: Statistics --- 2026-04-25 06:42:04 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:42:04 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:42:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:42:04 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:42:04 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-04-25 06:42:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-04-25 06:42:04 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-04-25 06:42:04 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-04-25 06:42:04 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-04-25 06:42:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:42:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:42:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:42:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:42:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:42:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:42:04 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 2026-04-25 06:42:04 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:42:03.998855 End time: 2026-04-25 06:42:04.018403 2026-04-25 06:42:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:42:04 INFO imstat::::casa ########################################## 2026-04-25 06:42:04 INFO phaseshift::::casa ########################################## 2026-04-25 06:42:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:42:04 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' ) 2026-04-25 06:42:04 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:42:04 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:42:04 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:42:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:42:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:42:04 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:42:04 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:42:04 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:42:04 INFO MSTransformManager::open Select data 2026-04-25 06:42:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:42:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:42:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 0.699877030rad' successfully parsed 2026-04-25 06:42:07 INFO phaseshift::::casa Shift phase center 2026-04-25 06:42:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:42:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:42:04.031524 End time: 2026-04-25 06:42:07.982718 2026-04-25 06:42:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:42:08 INFO phaseshift::::casa ########################################## 2026-04-25 06:42:08 INFO tclean::::casa ########################################## 2026-04-25 06:42:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:42:08 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:42:08 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:42:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:42:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:42:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:42:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:42:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:42:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:42:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:42:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:42:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:42:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:42:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:42:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:42:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021096 2026-04-25 06:42:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:42:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:42:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:42:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:42:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:42:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:42:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:42:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:42:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:42:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:42:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:42:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:42:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:42:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:42:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:42:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:42:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:42:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:42:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:42:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:42:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:42:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:42:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:42:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:42:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:42:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:42:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:42:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:42:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:42:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:42:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:42:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:42:19 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:42:08.012015 End time: 2026-04-25 06:42:19.466655 2026-04-25 06:42:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:42:19 INFO tclean::::casa ########################################## 2026-04-25 06:42:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:42:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:42:19 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:42:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:42:20 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:42:20 2026****** 2026-04-25 06:42:20 INFO ImageFitter::fit+ 2026-04-25 06:42:20 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:42:20 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:42:20 INFO ImageFitter::fit+ --- region: 2026-04-25 06:42:20 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:42:20 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:42:20 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:42:20 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:42:20 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:42:20 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:42:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:42:20 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:42:20 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:42:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:42:20 INFO imstat::::casa ########################################## 2026-04-25 06:42:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:42:20 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:42:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:42:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:42:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:42:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:42:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:42:20 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:42:20 INFO imstat:::: Values --- 2026-04-25 06:42:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:42:20 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:42:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:42:20 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-04-25 06:42:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:42:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:42:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:42:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-25 06:42:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:42:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:42:20 INFO imstat:::: Statistics --- 2026-04-25 06:42:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:42:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:42:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:42:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:42:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-04-25 06:42:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-04-25 06:42:20 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-04-25 06:42:20 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-04-25 06:42:20 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:42:20 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777640e-05 4.999996e+00 2026-04-25 06:42:20 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:42:19.538458 End time: 2026-04-25 06:42:19.557720 2026-04-25 06:42:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:42:20 INFO imstat::::casa ########################################## 2026-04-25 06:42:20 INFO phaseshift::::casa ########################################## 2026-04-25 06:42:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:42:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40d06m00' ) 2026-04-25 06:42:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:42:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:42:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:42:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:42:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:42:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:42:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:42:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:42:20 INFO MSTransformManager::open Select data 2026-04-25 06:42:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:42:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:42:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40d06m00' successfully parsed 2026-04-25 06:42:22 INFO phaseshift::::casa Shift phase center 2026-04-25 06:42:23 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:42:23 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:42:19.571177 End time: 2026-04-25 06:42:23.052112 2026-04-25 06:42:23 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:42:23 INFO phaseshift::::casa ########################################## 2026-04-25 06:42:23 INFO tclean::::casa ########################################## 2026-04-25 06:42:23 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:42:23 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:42:23 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:42:23 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:42:23 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:42:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:42:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:42:23 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:42:23 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:42:23 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:42:23 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:42:23 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:42:23 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:42:23 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:42:24 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:42:24 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021203 2026-04-25 06:42:24 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:42:24 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:42:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:42:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:42:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:42:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:42:26 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:42:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:42:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:42:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:42:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:42:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:42:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:42:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:42:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:42:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:42:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:42:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:42:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:42:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:42:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:42:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:42:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:42:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:42:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:42:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:42:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:42:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:42:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:42:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:42:33 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:42:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:42:34 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:42:23.081645 End time: 2026-04-25 06:42:34.139710 2026-04-25 06:42:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:42:34 INFO tclean::::casa ########################################## 2026-04-25 06:42:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:42:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:42:34 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:42:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:42:34 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:42:34 2026****** 2026-04-25 06:42:34 INFO ImageFitter::fit+ 2026-04-25 06:42:34 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:42:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:42:34 INFO ImageFitter::fit+ --- region: 2026-04-25 06:42:34 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:42:34 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:42:34 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:42:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:42:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:42:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:42:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:42:34 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:42:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:42:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:42:34 INFO imstat::::casa ########################################## 2026-04-25 06:42:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:42:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:42:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:42:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:42:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:42:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:42:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:42:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:42:34 INFO imstat:::: Values --- 2026-04-25 06:42:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:42:34 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:42:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:42:34 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-04-25 06:42:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:42:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:42:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:42:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:42:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:42:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:42:34 INFO imstat:::: Statistics --- 2026-04-25 06:42:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:42:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:42:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:42:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:42:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-04-25 06:42:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-04-25 06:42:34 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-04-25 06:42:34 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-04-25 06:42:34 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:42:34 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-04-25 06:42:34 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:42:34.193237 End time: 2026-04-25 06:42:34.213405 2026-04-25 06:42:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:42:34 INFO imstat::::casa ########################################## 2026-04-25 06:42:34 INFO phaseshift::::casa ########################################## 2026-04-25 06:42:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:42:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 02:40:24.0000' ) 2026-04-25 06:42:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:42:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:42:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:42:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:42:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:42:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:42:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:42:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:42:34 INFO MSTransformManager::open Select data 2026-04-25 06:42:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:42:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:42:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 02:40:24.0000' successfully parsed 2026-04-25 06:42:37 INFO phaseshift::::casa Shift phase center 2026-04-25 06:42:38 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:42:38 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:42:34.226156 End time: 2026-04-25 06:42:37.944997 2026-04-25 06:42:38 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:42:38 INFO phaseshift::::casa ########################################## 2026-04-25 06:42:38 INFO tclean::::casa ########################################## 2026-04-25 06:42:38 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:42:38 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:42:38 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:42:38 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:42:38 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:42:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:42:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:42:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:42:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:42:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:42:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:42:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:42:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:42:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:42:39 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:42:39 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022132 2026-04-25 06:42:39 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:42:39 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:42:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:42:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:42:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:42:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:42:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:42:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:42:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:42:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:42:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:42:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:42:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:42:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:42:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:42:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:42:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:42:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:42:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:42:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:42:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:42:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:42:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:42:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:42:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:42:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:42:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:42:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:42:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:42:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:42:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:42:48 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'] 2026-04-25 06:42:49 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:42:37.975773 End time: 2026-04-25 06:42:48.837983 2026-04-25 06:42:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:42:49 INFO tclean::::casa ########################################## 2026-04-25 06:42:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:42:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:42:49 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:42:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:42:49 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:42:49 2026****** 2026-04-25 06:42:49 INFO ImageFitter::fit+ 2026-04-25 06:42:49 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:42:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:42:49 INFO ImageFitter::fit+ --- region: 2026-04-25 06:42:49 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:42:49 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:42:49 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:42:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:42:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:42:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:42:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:42:49 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:42:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:42:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:42:49 INFO imstat::::casa ########################################## 2026-04-25 06:42:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:42:49 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:42:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:42:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:42:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:42:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:42:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:42:49 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:42:49 INFO imstat:::: Values --- 2026-04-25 06:42:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:42:49 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:42:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:42:49 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-04-25 06:42:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:42:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:42:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:42:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:42:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:42:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:42:49 INFO imstat:::: Statistics --- 2026-04-25 06:42:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:42:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:42:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:42:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:42:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-04-25 06:42:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-04-25 06:42:49 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-04-25 06:42:49 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-04-25 06:42:49 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:42:49 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-04-25 06:42:49 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:42:48.899315 End time: 2026-04-25 06:42:48.918163 2026-04-25 06:42:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:42:49 INFO imstat::::casa ########################################## 2026-04-25 06:42:49 INFO phaseshift::::casa ########################################## 2026-04-25 06:42:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:42:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40.100000000deg' ) 2026-04-25 06:42:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:42:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:42:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:42:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:42:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:42:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:42:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:42:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:42:49 INFO MSTransformManager::open Select data 2026-04-25 06:42:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:42:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:42:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40.100000000deg' successfully parsed 2026-04-25 06:42:52 INFO phaseshift::::casa Shift phase center 2026-04-25 06:42:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:42:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:42:48.931133 End time: 2026-04-25 06:42:52.812292 2026-04-25 06:42:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:42:53 INFO phaseshift::::casa ########################################## 2026-04-25 06:42:53 INFO tclean::::casa ########################################## 2026-04-25 06:42:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:42:53 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 ) 2026-04-25 06:42:53 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:42:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:42:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:42:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:42:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:42:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:42:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:42:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:42:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:42:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:42:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:42:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:42:54 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:42:54 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02339 2026-04-25 06:42:54 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:42:54 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:42:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:42:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:42:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:42:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:42:56 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:42:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:42:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:42:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:42:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:42:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:42:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:42:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:42:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:42:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:42:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:42:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:42:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:42:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:42:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:42:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:43:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:43:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:43:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:43:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:43:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:43:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:43:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:43:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:43:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:43:02 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:43:02 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'] 2026-04-25 06:43:03 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:42:52.841402 End time: 2026-04-25 06:43:03.286781 2026-04-25 06:43:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:43:03 INFO tclean::::casa ########################################## 2026-04-25 06:43:03 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:43:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:43:03 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:43:03 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:43:03 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:43:03 2026****** 2026-04-25 06:43:03 INFO ImageFitter::fit+ 2026-04-25 06:43:03 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:43:03 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:43:03 INFO ImageFitter::fit+ --- region: 2026-04-25 06:43:03 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:43:03 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:43:03 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:43:03 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:43:03 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:43:03 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:43:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:43:03 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:43:03 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:43:03 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:43:03 INFO imstat::::casa ########################################## 2026-04-25 06:43:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:43:03 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:43:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:43:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:43:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:43:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:43:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:43:03 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:43:03 INFO imstat:::: Values --- 2026-04-25 06:43:03 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:43:03 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:43:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:43:03 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-04-25 06:43:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:43:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:43:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:43:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:43:03 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:43:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:43:03 INFO imstat:::: Statistics --- 2026-04-25 06:43:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:43:03 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:43:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:43:03 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:43:03 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-04-25 06:43:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-04-25 06:43:03 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-04-25 06:43:03 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-04-25 06:43:03 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:43:03 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-04-25 06:43:03 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:43:03.352009 End time: 2026-04-25 06:43:03.371413 2026-04-25 06:43:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:43:03 INFO imstat::::casa ########################################## 2026-04-25 06:43:03 INFO phaseshift::::casa ########################################## 2026-04-25 06:43:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:43:03 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 0.699877030rad' ) 2026-04-25 06:43:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:43:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:43:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:43:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:43:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:43:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:43:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:43:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:43:03 INFO MSTransformManager::open Select data 2026-04-25 06:43:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:43:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:43:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 0.699877030rad' successfully parsed 2026-04-25 06:43:06 INFO phaseshift::::casa Shift phase center 2026-04-25 06:43:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:43:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:43:03.384548 End time: 2026-04-25 06:43:06.864234 2026-04-25 06:43:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:43:07 INFO phaseshift::::casa ########################################## 2026-04-25 06:43:07 INFO tclean::::casa ########################################## 2026-04-25 06:43:07 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:43:07 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:43:07 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:43:07 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:43:07 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:43:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:43:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:43:07 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:43:07 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:43:07 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:43:07 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:43:07 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:43:07 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:43:07 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:43:08 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:43:08 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023176 2026-04-25 06:43:08 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:43:08 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:43:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:43:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:43:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:43:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:43:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:43:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:43:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:43:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:43:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:43:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:43:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:43:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:43:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:43:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:43:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:43:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:43:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:43:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:43:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:43:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:43:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:43:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:43:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:43:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:43:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:43:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:43:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:43:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:43:15 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:43:16 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'] 2026-04-25 06:43:17 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:43:06.893825 End time: 2026-04-25 06:43:16.735480 2026-04-25 06:43:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:43:17 INFO tclean::::casa ########################################## 2026-04-25 06:43:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:43:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:43:17 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) 2026-04-25 06:43:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:43:17 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:43:17 2026****** 2026-04-25 06:43:17 INFO ImageFitter::fit+ 2026-04-25 06:43:17 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:43:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:43:17 INFO ImageFitter::fit+ --- region: 2026-04-25 06:43:17 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:43:17 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:43:17 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:43:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:43:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:43:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:43:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:43:17 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) 2026-04-25 06:43:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:43:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:43:17 INFO imstat::::casa ########################################## 2026-04-25 06:43:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:43:17 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 ) 2026-04-25 06:43:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:43:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:43:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:43:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:43:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:43:17 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) 2026-04-25 06:43:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:43:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:43:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:43:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:43:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:43:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:43:17 INFO imstat:::: Values --- 2026-04-25 06:43:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:43:17 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:43:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:43:17 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-04-25 06:43:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:43:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:43:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:43:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-25 06:43:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:43:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:43:17 INFO imstat:::: Statistics --- 2026-04-25 06:43:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:43:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:43:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:43:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:43:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-04-25 06:43:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-04-25 06:43:17 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-04-25 06:43:17 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-04-25 06:43:17 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-04-25 06:43:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:43:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:43:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:43:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:43:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:43:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:43:17 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 2026-04-25 06:43:17 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:43:16.787070 End time: 2026-04-25 06:43:16.806289 2026-04-25 06:43:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:43:17 INFO imstat::::casa ########################################## 2026-04-25 06:43:17 INFO phaseshift::::casa ########################################## 2026-04-25 06:43:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:43:17 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' ) 2026-04-25 06:43:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:43:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:43:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:43:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:43:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:43:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:43:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:43:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:43:17 INFO MSTransformManager::open Select data 2026-04-25 06:43:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:43:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:43:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40d06m00' successfully parsed 2026-04-25 06:43:20 INFO phaseshift::::casa Shift phase center 2026-04-25 06:43:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:43:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:43:16.819114 End time: 2026-04-25 06:43:20.740910 2026-04-25 06:43:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:43:21 INFO phaseshift::::casa ########################################## 2026-04-25 06:43:21 INFO tclean::::casa ########################################## 2026-04-25 06:43:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:43:21 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:43:21 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:43:21 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:43:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:43:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:43:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:43:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:43:21 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:43:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:43:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:43:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:43:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:43:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:43:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:43:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.014879 2026-04-25 06:43:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:43:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:43:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:43:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:43:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:43:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:43:24 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:43:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:43:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:43:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:43:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:43:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:43:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:43:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:43:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:43:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:43:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:43:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:43:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:43:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:43:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:43:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:43:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:43:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:43:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:43:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:43:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:43:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:43:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:43:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:43:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:43:30 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'] 2026-04-25 06:43:31 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:43:20.770295 End time: 2026-04-25 06:43:31.310379 2026-04-25 06:43:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:43:31 INFO tclean::::casa ########################################## 2026-04-25 06:43:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:43:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:43:31 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:43:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:43:31 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:43:31 2026****** 2026-04-25 06:43:31 INFO ImageFitter::fit+ 2026-04-25 06:43:31 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:43:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:43:31 INFO ImageFitter::fit+ --- region: 2026-04-25 06:43:31 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:43:31 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:43:31 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:43:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:43:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:43:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:43:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:43:31 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:43:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:43:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:43:31 INFO imstat::::casa ########################################## 2026-04-25 06:43:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:43:31 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:43:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:43:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:43:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:43:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:43:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:43:31 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:43:31 INFO imstat:::: Values --- 2026-04-25 06:43:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:43:31 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:43:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:43:31 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-04-25 06:43:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:43:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:43:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:43:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:43:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:43:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:43:31 INFO imstat:::: Statistics --- 2026-04-25 06:43:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:43:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:43:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:43:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:43:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-04-25 06:43:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-04-25 06:43:31 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-04-25 06:43:31 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-04-25 06:43:31 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:43:31 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777580e-05 4.999996e+00 2026-04-25 06:43:31 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:43:31.364124 End time: 2026-04-25 06:43:31.392682 2026-04-25 06:43:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:43:31 INFO imstat::::casa ########################################## 2026-04-25 06:43:31 INFO phaseshift::::casa ########################################## 2026-04-25 06:43:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:43:31 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 298.458333333deg 02:40:24.0000' ) 2026-04-25 06:43:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:43:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:43:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:43:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:43:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:43:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:43:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:43:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:43:31 INFO MSTransformManager::open Select data 2026-04-25 06:43:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:43:34 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 ".". 2026-04-25 06:43:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 02:40:24.0000' successfully parsed 2026-04-25 06:43:34 INFO phaseshift::::casa Shift phase center 2026-04-25 06:43:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:43:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:43:31.406920 End time: 2026-04-25 06:43:34.885311 2026-04-25 06:43:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:43:35 INFO phaseshift::::casa ########################################## 2026-04-25 06:43:35 INFO tclean::::casa ########################################## 2026-04-25 06:43:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:43:35 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:43:35 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:43:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:43:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:43:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:43:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:43:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:43:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:43:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:43:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:43:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:43:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:43:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:43:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:43:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020997 2026-04-25 06:43:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:43:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:43:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:43:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:43:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:43:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:43:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:43:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:43:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:43:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:43:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:43:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:43:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:43:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:43:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:43:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:43:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:43:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:43:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:43:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:43:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:43:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:43:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:43:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:43:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:43:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:43:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:43:44 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:43:44 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:43:44 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:43:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:43:45 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'] 2026-04-25 06:43:46 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:43:34.915949 End time: 2026-04-25 06:43:46.273479 2026-04-25 06:43:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:43:46 INFO tclean::::casa ########################################## 2026-04-25 06:43:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:43:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:43:46 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:43:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:43:46 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:43:46 2026****** 2026-04-25 06:43:46 INFO ImageFitter::fit+ 2026-04-25 06:43:46 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:43:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:43:46 INFO ImageFitter::fit+ --- region: 2026-04-25 06:43:46 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:43:46 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:43:46 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:43:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:43:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:43:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:43:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:43:46 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:43:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:43:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:43:46 INFO imstat::::casa ########################################## 2026-04-25 06:43:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:43:46 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:43:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:43:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:43:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:43:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:43:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:43:46 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:43:46 INFO imstat:::: Values --- 2026-04-25 06:43:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:43:46 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:43:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:43:46 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-04-25 06:43:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:43:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:43:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:43:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:43:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:43:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:43:46 INFO imstat:::: Statistics --- 2026-04-25 06:43:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:43:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:43:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:43:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:43:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-04-25 06:43:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-04-25 06:43:46 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-04-25 06:43:46 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-04-25 06:43:46 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:43:46 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777580e-05 4.999996e+00 2026-04-25 06:43:46 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:43:46.327774 End time: 2026-04-25 06:43:46.357237 2026-04-25 06:43:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:43:46 INFO imstat::::casa ########################################## 2026-04-25 06:43:46 INFO phaseshift::::casa ########################################## 2026-04-25 06:43:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:43:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40.100000000deg' ) 2026-04-25 06:43:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:43:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:43:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:43:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:43:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:43:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:43:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:43:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:43:46 INFO MSTransformManager::open Select data 2026-04-25 06:43:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:43:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:43:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40.100000000deg' successfully parsed 2026-04-25 06:43:49 INFO phaseshift::::casa Shift phase center 2026-04-25 06:43:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:43:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:43:46.371820 End time: 2026-04-25 06:43:49.976418 2026-04-25 06:43:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:43:50 INFO phaseshift::::casa ########################################## 2026-04-25 06:43:50 INFO tclean::::casa ########################################## 2026-04-25 06:43:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:43:50 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 ) 2026-04-25 06:43:50 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:43:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:43:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:43:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:43:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:43:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:43:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:43:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:43:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:43:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:43:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:43:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:43:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:43:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023449 2026-04-25 06:43:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:43:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:43:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:43:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:43:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:43:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:43:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:43:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:43:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:43:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:43:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:43:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:43:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:43:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:43:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:43:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:43:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:43:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:43:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:43:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:43:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:43:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:43:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:43:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:43:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:43:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:43:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:43:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:43:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:43:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:43:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:43:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:43:59 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'] 2026-04-25 06:44:01 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:43:50.005395 End time: 2026-04-25 06:44:00.548388 2026-04-25 06:44:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:44:01 INFO tclean::::casa ########################################## 2026-04-25 06:44:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:44:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:01 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) 2026-04-25 06:44:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:44:01 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:44:01 2026****** 2026-04-25 06:44:01 INFO ImageFitter::fit+ 2026-04-25 06:44:01 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:44:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:44:01 INFO ImageFitter::fit+ --- region: 2026-04-25 06:44:01 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:44:01 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:44:01 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:44:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:44:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:44:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:44:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:01 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) 2026-04-25 06:44:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:44:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:44:01 INFO imstat::::casa ########################################## 2026-04-25 06:44:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:44:01 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 ) 2026-04-25 06:44:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:44:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:44:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:44:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:44:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:01 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) 2026-04-25 06:44:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:44:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:44:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:44:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:44:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:44:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:44:01 INFO imstat:::: Values --- 2026-04-25 06:44:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:44:01 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:44:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:44:01 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-04-25 06:44:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:44:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:44:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:44:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:44:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:44:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:44:01 INFO imstat:::: Statistics --- 2026-04-25 06:44:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:44:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:44:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:44:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:44:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-04-25 06:44:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-04-25 06:44:01 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-04-25 06:44:01 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-04-25 06:44:01 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-04-25 06:44:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:44:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:44:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:44:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:44:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:44:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:44:01 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 2026-04-25 06:44:01 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:44:00.600076 End time: 2026-04-25 06:44:00.627765 2026-04-25 06:44:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:44:01 INFO imstat::::casa ########################################## 2026-04-25 06:44:01 INFO phaseshift::::casa ########################################## 2026-04-25 06:44:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:44:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 0.699877030rad' ) 2026-04-25 06:44:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:44:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:44:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:44:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:44:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:44:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:44:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:44:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:44:01 INFO MSTransformManager::open Select data 2026-04-25 06:44:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:44:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:44:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 0.699877030rad' successfully parsed 2026-04-25 06:44:03 INFO phaseshift::::casa Shift phase center 2026-04-25 06:44:04 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:44:04 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:44:00.640982 End time: 2026-04-25 06:44:04.270021 2026-04-25 06:44:04 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:44:04 INFO phaseshift::::casa ########################################## 2026-04-25 06:44:04 INFO tclean::::casa ########################################## 2026-04-25 06:44:04 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:44:04 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:44:04 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:44:04 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:44:04 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:44:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:44:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:44:04 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:44:04 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:44:04 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:44:04 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:44:04 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:44:04 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:44:04 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:44:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:44:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021194 2026-04-25 06:44:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:44:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:44:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:44:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:44:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:44:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:44:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:44:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:44:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:44:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:44:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:44:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:44:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:44:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:44:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:44:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:44:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:44:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:44:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:44:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:44:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:44:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:44:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:44:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:44:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:44:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:44:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:44:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:44:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:44:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:44:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:44:14 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'] 2026-04-25 06:44:15 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:44:04.299504 End time: 2026-04-25 06:44:15.294076 2026-04-25 06:44:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:44:15 INFO tclean::::casa ########################################## 2026-04-25 06:44:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:44:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:15 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) 2026-04-25 06:44:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:44:15 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:44:15 2026****** 2026-04-25 06:44:15 INFO ImageFitter::fit+ 2026-04-25 06:44:15 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:44:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:44:15 INFO ImageFitter::fit+ --- region: 2026-04-25 06:44:15 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:44:15 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:44:15 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:44:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:44:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:44:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:44:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:15 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) 2026-04-25 06:44:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:44:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:44:15 INFO imstat::::casa ########################################## 2026-04-25 06:44:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:44:15 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 ) 2026-04-25 06:44:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:44:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:44:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:44:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:44:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:15 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) 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:44:15 INFO imstat:::: Values --- 2026-04-25 06:44:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:44:15 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:44:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:44:15 INFO imstat:::: -- minimum value [min]: -7.77738e-05 Jy/beam 2026-04-25 06:44:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:44:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:44:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:44:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:44:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:44:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:44:15 INFO imstat:::: Statistics --- 2026-04-25 06:44:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:44:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:44:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:44:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:44:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86662e-05 Jy/beam 2026-04-25 06:44:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73577e-05 Jy/beam 2026-04-25 06:44:15 INFO imstat:::: -- IQR [quartile]: 3.56242e-05 Jy/beam 2026-04-25 06:44:15 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-04-25 06:44:15 INFO imstat:::: -- Third quartile [q3]: 1.11673e-06 Jy/beam 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:44:15 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777377e-05 4.999996e+00 2026-04-25 06:44:15 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:44:15.357897 End time: 2026-04-25 06:44:15.377109 2026-04-25 06:44:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:44:15 INFO imstat::::casa ########################################## 2026-04-25 06:44:15 INFO phaseshift::::casa ########################################## 2026-04-25 06:44:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:44:15 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40d06m00' ) 2026-04-25 06:44:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:44:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:44:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:44:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:44:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:44:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:44:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:44:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:44:15 INFO MSTransformManager::open Select data 2026-04-25 06:44:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:44:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:44:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40d06m00' successfully parsed 2026-04-25 06:44:18 INFO phaseshift::::casa Shift phase center 2026-04-25 06:44:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:44:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:44:15.390851 End time: 2026-04-25 06:44:18.745098 2026-04-25 06:44:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:44:19 INFO phaseshift::::casa ########################################## 2026-04-25 06:44:19 INFO tclean::::casa ########################################## 2026-04-25 06:44:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:44:19 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 ) 2026-04-25 06:44:19 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:44:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:44:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:44:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:44:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:44:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:44:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:44:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:44:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:44:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:44:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:44:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:44:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:44:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020683 2026-04-25 06:44:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:44:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:44:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:44:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:44:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:44:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:44:22 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:44:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:44:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:44:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:44:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:44:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:44:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:44:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:44:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:44:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:44:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:44:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:44:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:44:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:44:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:44:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:44:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:44:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:44:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:44:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:44:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:44:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:44:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:44:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:44:28 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:44:28 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'] 2026-04-25 06:44:29 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:44:18.775083 End time: 2026-04-25 06:44:29.120141 2026-04-25 06:44:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:44:29 INFO tclean::::casa ########################################## 2026-04-25 06:44:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:44:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:29 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:44:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:44:29 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:44:29 2026****** 2026-04-25 06:44:29 INFO ImageFitter::fit+ 2026-04-25 06:44:29 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:44:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:44:29 INFO ImageFitter::fit+ --- region: 2026-04-25 06:44:29 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:44:29 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:44:29 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:44:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:44:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:44:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:44:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:29 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) 2026-04-25 06:44:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:44:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:44:29 INFO imstat::::casa ########################################## 2026-04-25 06:44:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:44:29 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:44:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:44:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:44:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:44:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:44:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:29 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:44:29 INFO imstat:::: Values --- 2026-04-25 06:44:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:44:29 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:44:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:44:29 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-04-25 06:44:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:44:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:44:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:44:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-25 06:44:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:44:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:44:29 INFO imstat:::: Statistics --- 2026-04-25 06:44:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:44:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:44:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:44:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:44:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-04-25 06:44:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-04-25 06:44:29 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-04-25 06:44:29 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-04-25 06:44:29 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:44:29 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778010e-05 4.999996e+00 2026-04-25 06:44:29 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:44:29.171330 End time: 2026-04-25 06:44:29.189865 2026-04-25 06:44:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:44:29 INFO imstat::::casa ########################################## 2026-04-25 06:44:29 INFO phaseshift::::casa ########################################## 2026-04-25 06:44:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:44:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 02:40:24.0000' ) 2026-04-25 06:44:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:44:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:44:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:44:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:44:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:44:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:44:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:44:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:44:29 INFO MSTransformManager::open Select data 2026-04-25 06:44:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:44:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:44:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 02:40:24.0000' successfully parsed 2026-04-25 06:44:32 INFO phaseshift::::casa Shift phase center 2026-04-25 06:44:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:44:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:44:29.202717 End time: 2026-04-25 06:44:32.895967 2026-04-25 06:44:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:44:33 INFO phaseshift::::casa ########################################## 2026-04-25 06:44:33 INFO tclean::::casa ########################################## 2026-04-25 06:44:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:44:33 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:44:33 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:44:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:44:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:44:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:44:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:44:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:44:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:44:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:44:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:44:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:44:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:44:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:44:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:44:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022288 2026-04-25 06:44:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:44:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:44:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:44:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:44:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:44:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:44:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:44:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:44:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:44:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:44:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:44:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:44:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:44:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:44:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:44:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:44:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:44:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:44:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:44:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:44:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:44:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:44:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:44:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:44:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:44:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:44:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:44:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:44:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:44:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:44:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:44:42 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'] 2026-04-25 06:44:43 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:44:32.927354 End time: 2026-04-25 06:44:43.249347 2026-04-25 06:44:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:44:43 INFO tclean::::casa ########################################## 2026-04-25 06:44:43 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:44:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:43 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:44:43 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:44:43 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:44:43 2026****** 2026-04-25 06:44:43 INFO ImageFitter::fit+ 2026-04-25 06:44:43 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:44:43 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:44:43 INFO ImageFitter::fit+ --- region: 2026-04-25 06:44:43 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:44:43 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:44:43 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:44:43 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:44:43 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:44:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:44:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:43 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:44:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:44:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:44:43 INFO imstat::::casa ########################################## 2026-04-25 06:44:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:44:43 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:44:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:44:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:44:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:44:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:44:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:43 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:44:43 INFO imstat:::: Values --- 2026-04-25 06:44:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:44:43 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:44:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:44:43 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-04-25 06:44:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:44:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:44:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:44:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-25 06:44:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:44:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:44:43 INFO imstat:::: Statistics --- 2026-04-25 06:44:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:44:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:44:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:44:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:44:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-04-25 06:44:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-04-25 06:44:43 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-04-25 06:44:43 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-04-25 06:44:43 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:44:43 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778010e-05 4.999996e+00 2026-04-25 06:44:43 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:44:43.304199 End time: 2026-04-25 06:44:43.324469 2026-04-25 06:44:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:44:43 INFO imstat::::casa ########################################## 2026-04-25 06:44:43 INFO phaseshift::::casa ########################################## 2026-04-25 06:44:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:44:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40.100000000deg' ) 2026-04-25 06:44:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:44:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:44:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:44:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:44:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:44:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:44:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:44:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:44:43 INFO MSTransformManager::open Select data 2026-04-25 06:44:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:44:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:44:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40.100000000deg' successfully parsed 2026-04-25 06:44:47 INFO phaseshift::::casa Shift phase center 2026-04-25 06:44:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:44:47 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:44:43.338725 End time: 2026-04-25 06:44:47.434379 2026-04-25 06:44:47 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:44:47 INFO phaseshift::::casa ########################################## 2026-04-25 06:44:47 INFO tclean::::casa ########################################## 2026-04-25 06:44:47 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:44:47 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 ) 2026-04-25 06:44:47 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:44:47 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:44:47 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:44:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:44:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:44:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:44:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:44:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:44:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:44:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:44:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:44:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:44:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:44:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022925 2026-04-25 06:44:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:44:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:44:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:44:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:44:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:44:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:44:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:44:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:44:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:44:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:44:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:44:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:44:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:44:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:44:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:44:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:44:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:44:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:44:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:44:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:44:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:44:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:44:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:44:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:44:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:44:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:44:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:44:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:44:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:44:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:44:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:44:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:44:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:44:59 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:44:47.462348 End time: 2026-04-25 06:44:58.674548 2026-04-25 06:44:59 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:44:59 INFO tclean::::casa ########################################## 2026-04-25 06:44:59 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:44:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:59 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) 2026-04-25 06:44:59 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:44:59 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:44:59 2026****** 2026-04-25 06:44:59 INFO ImageFitter::fit+ 2026-04-25 06:44:59 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:44:59 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:44:59 INFO ImageFitter::fit+ --- region: 2026-04-25 06:44:59 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:44:59 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:44:59 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:44:59 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:44:59 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:44:59 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:44:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:59 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) 2026-04-25 06:44:59 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:44:59 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:44:59 INFO imstat::::casa ########################################## 2026-04-25 06:44:59 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:44:59 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 ) 2026-04-25 06:44:59 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:44:59 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:44:59 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:44:59 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:44:59 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:44:59 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) 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:44:59 INFO imstat:::: Values --- 2026-04-25 06:44:59 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:44:59 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:44:59 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:44:59 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-04-25 06:44:59 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:44:59 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:44:59 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:44:59 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-25 06:44:59 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:44:59 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:44:59 INFO imstat:::: Statistics --- 2026-04-25 06:44:59 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:44:59 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:44:59 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:44:59 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:44:59 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-04-25 06:44:59 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-04-25 06:44:59 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-04-25 06:44:59 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-04-25 06:44:59 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:44:59 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778010e-05 4.999996e+00 2026-04-25 06:44:59 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:44:58.727231 End time: 2026-04-25 06:44:58.747365 2026-04-25 06:44:59 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:44:59 INFO imstat::::casa ########################################## 2026-04-25 06:44:59 INFO phaseshift::::casa ########################################## 2026-04-25 06:44:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:44:59 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 0.699877030rad' ) 2026-04-25 06:44:59 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:44:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:44:59 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:44:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:44:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:44:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:44:59 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:44:59 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:44:59 INFO MSTransformManager::open Select data 2026-04-25 06:44:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:45:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:45:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 0.699877030rad' successfully parsed 2026-04-25 06:45:01 INFO phaseshift::::casa Shift phase center 2026-04-25 06:45:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:45:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:44:58.761052 End time: 2026-04-25 06:45:02.062118 2026-04-25 06:45:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:45:02 INFO phaseshift::::casa ########################################## 2026-04-25 06:45:02 INFO tclean::::casa ########################################## 2026-04-25 06:45:02 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:45:02 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:45:02 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:45:02 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:45:02 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:45:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:45:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:45:02 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:45:02 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:45:02 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:45:02 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:45:02 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:45:02 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:45:02 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:45:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:45:03 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023754 2026-04-25 06:45:03 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:45:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:45:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:45:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:45:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:45:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:45:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:45:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:45:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:45:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:45:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:45:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:45:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:45:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:45:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:45:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:45:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:45:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:45:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:45:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:45:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:45:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:45:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:45:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:45:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:45:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:45:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:45:11 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:45:11 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:45:11 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:45:11 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:45:12 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:45:13 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:45:02.093018 End time: 2026-04-25 06:45:12.786775 2026-04-25 06:45:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:45:13 INFO tclean::::casa ########################################## 2026-04-25 06:45:13 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:45:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:45:13 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:45:13 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:45:13 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:45:13 2026****** 2026-04-25 06:45:13 INFO ImageFitter::fit+ 2026-04-25 06:45:13 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:45:13 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:45:13 INFO ImageFitter::fit+ --- region: 2026-04-25 06:45:13 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:45:13 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:45:13 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:45:13 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:45:13 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:45:13 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:45:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:45:13 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:45:13 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:45:13 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:45:13 INFO imstat::::casa ########################################## 2026-04-25 06:45:13 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:45:13 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:45:13 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:45:13 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:45:13 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:45:13 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:45:13 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:45:13 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:45:13 INFO imstat:::: Values --- 2026-04-25 06:45:13 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:45:13 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:45:13 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:45:13 INFO imstat:::: -- minimum value [min]: -7.77793e-05 Jy/beam 2026-04-25 06:45:13 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:45:13 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:45:13 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:45:13 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-25 06:45:13 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:45:13 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:45:13 INFO imstat:::: Statistics --- 2026-04-25 06:45:13 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:45:13 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:45:13 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:45:13 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:45:13 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-04-25 06:45:13 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73592e-05 Jy/beam 2026-04-25 06:45:13 INFO imstat:::: -- IQR [quartile]: 3.55982e-05 Jy/beam 2026-04-25 06:45:13 INFO imstat:::: -- First quartile [q1]: -3.45035e-05 Jy/beam 2026-04-25 06:45:13 INFO imstat:::: -- Third quartile [q3]: 1.09469e-06 Jy/beam 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:45:13 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777928e-05 4.999996e+00 2026-04-25 06:45:13 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:45:12.838809 End time: 2026-04-25 06:45:12.858100 2026-04-25 06:45:13 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:45:13 INFO imstat::::casa ########################################## 2026-04-25 06:45:13 INFO phaseshift::::casa ########################################## 2026-04-25 06:45:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:45:13 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40d06m0.0019' ) 2026-04-25 06:45:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:45:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:45:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:45:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:45:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:45:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:45:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:45:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:45:13 INFO MSTransformManager::open Select data 2026-04-25 06:45:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:45:15 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:45:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40d06m0.0019' successfully parsed 2026-04-25 06:45:15 INFO phaseshift::::casa Shift phase center 2026-04-25 06:45:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:45:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:45:12.871755 End time: 2026-04-25 06:45:16.304616 2026-04-25 06:45:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:45:16 INFO phaseshift::::casa ########################################## 2026-04-25 06:45:16 INFO tclean::::casa ########################################## 2026-04-25 06:45:16 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:45:16 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:45:16 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:45:16 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:45:16 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:45:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:45:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:45:16 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:45:16 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:45:16 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:45:16 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:45:16 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:45:16 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:45:16 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:45:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:45:17 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020971 2026-04-25 06:45:17 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:45:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:45:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:45:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:45:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:45:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:45:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:45:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:45:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:45:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:45:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:45:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:45:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:45:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:45:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:45:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:45:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:45:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:45:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:45:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:45:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:45:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:45:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:45:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:45:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:45:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:45:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:45:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:45:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:45:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:45:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:45:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:45:27 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:45:16.334891 End time: 2026-04-25 06:45:26.986329 2026-04-25 06:45:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:45:27 INFO tclean::::casa ########################################## 2026-04-25 06:45:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:45:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:45:27 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:45:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:45:27 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:45:27 2026****** 2026-04-25 06:45:27 INFO ImageFitter::fit+ 2026-04-25 06:45:27 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:45:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:45:27 INFO ImageFitter::fit+ --- region: 2026-04-25 06:45:27 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:45:27 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:45:27 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:45:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:45:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:45:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:45:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:45:27 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:45:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:45:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:45:27 INFO imstat::::casa ########################################## 2026-04-25 06:45:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:45:27 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:45:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:45:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:45:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:45:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:45:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:45:27 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:45:27 INFO imstat:::: Values --- 2026-04-25 06:45:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:45:27 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:45:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:45:27 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-04-25 06:45:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:45:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:45:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:45:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-25 06:45:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:45:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:45:27 INFO imstat:::: Statistics --- 2026-04-25 06:45:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:45:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:45:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:45:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:45:27 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-04-25 06:45:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-04-25 06:45:27 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-04-25 06:45:27 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-04-25 06:45:27 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:45:27 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779541e-05 4.999996e+00 2026-04-25 06:45:27 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:45:27.037386 End time: 2026-04-25 06:45:27.057019 2026-04-25 06:45:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:45:27 INFO imstat::::casa ########################################## 2026-04-25 06:45:27 INFO phaseshift::::casa ########################################## 2026-04-25 06:45:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:45:27 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 02:40:24.0001' ) 2026-04-25 06:45:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:45:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:45:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:45:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:45:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:45:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:45:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:45:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:45:27 INFO MSTransformManager::open Select data 2026-04-25 06:45:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:45:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:45:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 02:40:24.0001' successfully parsed 2026-04-25 06:45:30 INFO phaseshift::::casa Shift phase center 2026-04-25 06:45:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:45:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:45:27.070713 End time: 2026-04-25 06:45:31.129878 2026-04-25 06:45:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:45:31 INFO phaseshift::::casa ########################################## 2026-04-25 06:45:31 INFO tclean::::casa ########################################## 2026-04-25 06:45:31 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:45:31 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:45:31 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:45:31 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:45:31 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:45:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:45:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:45:31 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:45:31 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:45:31 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:45:31 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:45:31 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:45:31 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:45:31 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:45:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:45:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024086 2026-04-25 06:45:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:45:33 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:45:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:45:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:45:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:45:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:45:34 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:45:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:45:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:45:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:45:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:45:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:45:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:45:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:45:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:45:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:45:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:45:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:45:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:45:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:45:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:45:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:45:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:45:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:45:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:45:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:45:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:45:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:45:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:45:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:45:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:45:41 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'] 2026-04-25 06:45:42 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:45:31.161412 End time: 2026-04-25 06:45:41.805815 2026-04-25 06:45:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:45:42 INFO tclean::::casa ########################################## 2026-04-25 06:45:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:45:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:45:42 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:45:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:45:42 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:45:42 2026****** 2026-04-25 06:45:42 INFO ImageFitter::fit+ 2026-04-25 06:45:42 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:45:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:45:42 INFO ImageFitter::fit+ --- region: 2026-04-25 06:45:42 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:45:42 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:45:42 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:45:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:45:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:45:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:45:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:45:42 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-04-25 06:45:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:45:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:45:42 INFO imstat::::casa ########################################## 2026-04-25 06:45:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:45:42 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:45:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:45:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:45:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:45:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:45:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:45:42 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:45:42 INFO imstat:::: Values --- 2026-04-25 06:45:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:45:42 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:45:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:45:42 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-04-25 06:45:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:45:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:45:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:45:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-04-25 06:45:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:45:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:45:42 INFO imstat:::: Statistics --- 2026-04-25 06:45:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:45:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:45:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:45:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:45:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-04-25 06:45:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-04-25 06:45:42 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-04-25 06:45:42 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-04-25 06:45:42 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:45:42 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-04-25 06:45:42 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:45:41.857743 End time: 2026-04-25 06:45:41.886737 2026-04-25 06:45:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:45:42 INFO imstat::::casa ########################################## 2026-04-25 06:45:42 INFO phaseshift::::casa ########################################## 2026-04-25 06:45:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:45:42 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40.100000528deg' ) 2026-04-25 06:45:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:45:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:45:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:45:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:45:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:45:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:45:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:45:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:45:42 INFO MSTransformManager::open Select data 2026-04-25 06:45:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:45:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:45:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40.100000528deg' successfully parsed 2026-04-25 06:45:45 INFO phaseshift::::casa Shift phase center 2026-04-25 06:45:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:45:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:45:41.899886 End time: 2026-04-25 06:45:45.538402 2026-04-25 06:45:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:45:46 INFO phaseshift::::casa ########################################## 2026-04-25 06:45:46 INFO tclean::::casa ########################################## 2026-04-25 06:45:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:45:46 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 ) 2026-04-25 06:45:46 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:45:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:45:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:45:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:45:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:45:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:45:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:45:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:45:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:45:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:45:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:45:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:45:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:45:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022928 2026-04-25 06:45:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:45:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:45:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:45:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:45:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:45:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:45:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:45:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:45:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:45:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:45:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:45:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:45:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:45:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:45:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:45:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:45:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:45:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:45:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:45:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:45:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:45:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:45:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:45:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:45:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:45:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:45:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:45:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:45:54 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:45:54 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:45:54 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:45:55 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:45:55 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'] 2026-04-25 06:45:56 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:45:45.569550 End time: 2026-04-25 06:45:56.396911 2026-04-25 06:45:56 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:45:56 INFO tclean::::casa ########################################## 2026-04-25 06:45:56 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:45:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:45:56 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) 2026-04-25 06:45:56 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:45:56 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:45:56 2026****** 2026-04-25 06:45:56 INFO ImageFitter::fit+ 2026-04-25 06:45:56 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:45:56 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:45:56 INFO ImageFitter::fit+ --- region: 2026-04-25 06:45:56 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:45:56 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:45:56 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:45:56 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:45:56 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:45:56 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:45:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:45:56 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) 2026-04-25 06:45:56 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:45:56 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:45:56 INFO imstat::::casa ########################################## 2026-04-25 06:45:56 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:45:56 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 ) 2026-04-25 06:45:56 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:45:56 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:45:56 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:45:56 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:45:56 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:45:56 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) 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:45:56 INFO imstat:::: Values --- 2026-04-25 06:45:56 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:45:56 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:45:56 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:45:56 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-04-25 06:45:56 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:45:56 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:45:56 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:45:56 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-25 06:45:56 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:45:56 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:45:56 INFO imstat:::: Statistics --- 2026-04-25 06:45:56 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:45:56 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:45:56 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:45:56 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:45:56 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-04-25 06:45:56 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-04-25 06:45:56 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-04-25 06:45:56 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-04-25 06:45:56 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:45:56 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779537e-05 4.999996e+00 2026-04-25 06:45:56 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:45:56.450131 End time: 2026-04-25 06:45:56.469967 2026-04-25 06:45:56 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:45:56 INFO imstat::::casa ########################################## 2026-04-25 06:45:56 INFO phaseshift::::casa ########################################## 2026-04-25 06:45:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:45:56 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 0.699877039rad' ) 2026-04-25 06:45:56 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:45:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:45:56 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:45:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:45:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:45:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:45:57 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:45:57 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:45:57 INFO MSTransformManager::open Select data 2026-04-25 06:45:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:45:59 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:45:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 0.699877039rad' successfully parsed 2026-04-25 06:45:59 INFO phaseshift::::casa Shift phase center 2026-04-25 06:45:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:45:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:45:56.482967 End time: 2026-04-25 06:45:59.474958 2026-04-25 06:45:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:45:59 INFO phaseshift::::casa ########################################## 2026-04-25 06:46:00 INFO tclean::::casa ########################################## 2026-04-25 06:46:00 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:46:00 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 ) 2026-04-25 06:46:00 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:46:00 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:46:00 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:46:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:46:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:46:00 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:46:00 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:46:00 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:46:00 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:46:00 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:46:00 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:46:00 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:46:01 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:46:01 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024568 2026-04-25 06:46:01 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:46:01 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:46:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:46:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:46:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:46:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:46:03 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:46:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:46:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:46:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:46:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:46:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:46:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:46:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:46:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:46:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:46:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:46:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:46:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:46:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:46:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:46:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:46:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:46:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:46:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:46:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:46:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:46:08 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:46:08 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:46:08 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:46:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:46:09 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'] 2026-04-25 06:46:10 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:45:59.504880 End time: 2026-04-25 06:46:09.835818 2026-04-25 06:46:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:46:10 INFO tclean::::casa ########################################## 2026-04-25 06:46:10 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:46:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:46:10 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) 2026-04-25 06:46:10 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:46:10 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:46:10 2026****** 2026-04-25 06:46:10 INFO ImageFitter::fit+ 2026-04-25 06:46:10 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:46:10 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:46:10 INFO ImageFitter::fit+ --- region: 2026-04-25 06:46:10 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:46:10 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:46:10 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:46:10 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:46:10 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:46:10 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:46:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:46:10 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) 2026-04-25 06:46:10 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:46:10 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:46:10 INFO imstat::::casa ########################################## 2026-04-25 06:46:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:46:10 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:46:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:46:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:46:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:46:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:46:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:46:10 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:46:10 INFO imstat:::: Values --- 2026-04-25 06:46:10 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:46:10 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:46:10 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:46:10 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-04-25 06:46:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:46:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:46:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:46:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-25 06:46:10 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:46:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:46:10 INFO imstat:::: Statistics --- 2026-04-25 06:46:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:46:10 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:46:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:46:10 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:46:10 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-04-25 06:46:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-04-25 06:46:10 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-04-25 06:46:10 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-04-25 06:46:10 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:46:10 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778665e-05 4.999996e+00 2026-04-25 06:46:10 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:46:09.887506 End time: 2026-04-25 06:46:09.907582 2026-04-25 06:46:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:46:10 INFO imstat::::casa ########################################## 2026-04-25 06:46:10 INFO phaseshift::::casa ########################################## 2026-04-25 06:46:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:46:10 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40d06m0.0019' ) 2026-04-25 06:46:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:46:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:46:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:46:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:46:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:46:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:46:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:46:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:46:10 INFO MSTransformManager::open Select data 2026-04-25 06:46:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:46:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:46:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40d06m0.0019' successfully parsed 2026-04-25 06:46:13 INFO phaseshift::::casa Shift phase center 2026-04-25 06:46:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:46:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:46:09.921291 End time: 2026-04-25 06:46:13.604603 2026-04-25 06:46:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:46:14 INFO phaseshift::::casa ########################################## 2026-04-25 06:46:14 INFO tclean::::casa ########################################## 2026-04-25 06:46:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:46:14 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:46:14 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:46:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:46:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:46:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:46:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:46:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:46:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:46:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:46:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:46:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:46:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:46:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:46:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:46:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022674 2026-04-25 06:46:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:46:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:46:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:46:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:46:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:46:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:46:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:46:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:46:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:46:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:46:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:46:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:46:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:46:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:46:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:46:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:46:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:46:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:46:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:46:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:46:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:46:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:46:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:46:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:46:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:46:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:46:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:46:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:46:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:46:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:46:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:46:23 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'] 2026-04-25 06:46:24 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:46:13.634396 End time: 2026-04-25 06:46:23.866268 2026-04-25 06:46:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:46:24 INFO tclean::::casa ########################################## 2026-04-25 06:46:24 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:46:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:46:24 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:46:24 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:46:24 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:46:24 2026****** 2026-04-25 06:46:24 INFO ImageFitter::fit+ 2026-04-25 06:46:24 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:46:24 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:46:24 INFO ImageFitter::fit+ --- region: 2026-04-25 06:46:24 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:46:24 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:46:24 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:46:24 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:46:24 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:46:24 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:46:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:46:24 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:46:24 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:46:24 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:46:24 INFO imstat::::casa ########################################## 2026-04-25 06:46:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:46:24 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:46:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:46:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:46:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:46:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:46:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:46:24 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:46:24 INFO imstat:::: Values --- 2026-04-25 06:46:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:46:24 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:46:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:46:24 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-04-25 06:46:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:46:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:46:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:46:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-25 06:46:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:46:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:46:24 INFO imstat:::: Statistics --- 2026-04-25 06:46:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:46:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:46:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:46:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:46:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-04-25 06:46:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-04-25 06:46:24 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-04-25 06:46:24 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-04-25 06:46:24 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:46:24 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779541e-05 4.999996e+00 2026-04-25 06:46:24 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:46:23.921253 End time: 2026-04-25 06:46:23.950848 2026-04-25 06:46:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:46:24 INFO imstat::::casa ########################################## 2026-04-25 06:46:24 INFO phaseshift::::casa ########################################## 2026-04-25 06:46:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:46:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 02:40:24.0001' ) 2026-04-25 06:46:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:46:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:46:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:46:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:46:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:46:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:46:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:46:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:46:24 INFO MSTransformManager::open Select data 2026-04-25 06:46:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:46:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:46:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 02:40:24.0001' successfully parsed 2026-04-25 06:46:27 INFO phaseshift::::casa Shift phase center 2026-04-25 06:46:27 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:46:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:46:23.963752 End time: 2026-04-25 06:46:27.362605 2026-04-25 06:46:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:46:27 INFO phaseshift::::casa ########################################## 2026-04-25 06:46:27 INFO tclean::::casa ########################################## 2026-04-25 06:46:27 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:46:27 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:46:27 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:46:27 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:46:27 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:46:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:46:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:46:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:46:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:46:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:46:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:46:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:46:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:46:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:46:29 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:46:29 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021463 2026-04-25 06:46:29 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:46:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:46:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:46:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:46:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:46:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:46:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:46:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:46:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:46:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:46:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:46:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:46:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:46:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:46:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:46:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:46:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:46:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:46:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:46:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:46:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:46:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:46:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:46:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:46:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:46:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:46:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:46:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:46:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:46:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:46:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:46:37 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'] 2026-04-25 06:46:38 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:46:27.393993 End time: 2026-04-25 06:46:37.820556 2026-04-25 06:46:38 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:46:38 INFO tclean::::casa ########################################## 2026-04-25 06:46:38 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:46:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:46:38 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:46:38 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:46:38 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:46:38 2026****** 2026-04-25 06:46:38 INFO ImageFitter::fit+ 2026-04-25 06:46:38 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:46:38 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:46:38 INFO ImageFitter::fit+ --- region: 2026-04-25 06:46:38 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:46:38 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:46:38 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:46:38 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:46:38 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:46:38 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:46:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:46:38 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-04-25 06:46:38 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:46:38 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:46:38 INFO imstat::::casa ########################################## 2026-04-25 06:46:38 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:46:38 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:46:38 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:46:38 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:46:38 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:46:38 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:46:38 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:46:38 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:46:38 INFO imstat:::: Values --- 2026-04-25 06:46:38 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:46:38 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:46:38 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:46:38 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-04-25 06:46:38 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:46:38 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:46:38 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:46:38 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-04-25 06:46:38 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:46:38 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:46:38 INFO imstat:::: Statistics --- 2026-04-25 06:46:38 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:46:38 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:46:38 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:46:38 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:46:38 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-04-25 06:46:38 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-04-25 06:46:38 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-04-25 06:46:38 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-04-25 06:46:38 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:46:38 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-04-25 06:46:38 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:46:37.876472 End time: 2026-04-25 06:46:37.896384 2026-04-25 06:46:38 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:46:38 INFO imstat::::casa ########################################## 2026-04-25 06:46:38 INFO phaseshift::::casa ########################################## 2026-04-25 06:46:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:46:38 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40.100000528deg' ) 2026-04-25 06:46:38 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:46:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:46:38 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:46:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:46:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:46:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:46:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:46:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:46:38 INFO MSTransformManager::open Select data 2026-04-25 06:46:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:46:41 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:46:41 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40.100000528deg' successfully parsed 2026-04-25 06:46:41 INFO phaseshift::::casa Shift phase center 2026-04-25 06:46:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:46:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:46:37.909857 End time: 2026-04-25 06:46:41.570859 2026-04-25 06:46:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:46:42 INFO phaseshift::::casa ########################################## 2026-04-25 06:46:42 INFO tclean::::casa ########################################## 2026-04-25 06:46:42 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:46:42 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 ) 2026-04-25 06:46:42 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:46:42 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:46:42 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:46:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:46:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:46:42 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:46:42 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:46:42 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:46:42 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:46:42 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:46:42 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:46:42 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:46:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:46:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021354 2026-04-25 06:46:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:46:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:46:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:46:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:46:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:46:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:46:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:46:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:46:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:46:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:46:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:46:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:46:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:46:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:46:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:46:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:46:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:46:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:46:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:46:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:46:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:46:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:46:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:46:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:46:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:46:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:46:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:46:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:46:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:46:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:46:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:46:51 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:46:52 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:46:41.600536 End time: 2026-04-25 06:46:52.174571 2026-04-25 06:46:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:46:52 INFO tclean::::casa ########################################## 2026-04-25 06:46:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:46:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:46:52 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:46:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:46:52 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:46:52 2026****** 2026-04-25 06:46:52 INFO ImageFitter::fit+ 2026-04-25 06:46:52 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:46:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:46:52 INFO ImageFitter::fit+ --- region: 2026-04-25 06:46:52 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:46:52 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:46:52 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:46:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:46:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:46:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:46:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:46:52 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:46:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:46:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:46:52 INFO imstat::::casa ########################################## 2026-04-25 06:46:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:46:52 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:46:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:46:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:46:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:46:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:46:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:46:52 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:46:52 INFO imstat:::: Values --- 2026-04-25 06:46:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:46:52 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:46:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:46:52 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-04-25 06:46:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:46:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:46:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:46:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-25 06:46:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:46:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:46:52 INFO imstat:::: Statistics --- 2026-04-25 06:46:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:46:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:46:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:46:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:46:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-04-25 06:46:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-04-25 06:46:52 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-04-25 06:46:52 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-04-25 06:46:52 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:46:52 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779537e-05 4.999996e+00 2026-04-25 06:46:52 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:46:52.236064 End time: 2026-04-25 06:46:52.255476 2026-04-25 06:46:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:46:52 INFO imstat::::casa ########################################## 2026-04-25 06:46:52 INFO phaseshift::::casa ########################################## 2026-04-25 06:46:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:46:52 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 0.699877039rad' ) 2026-04-25 06:46:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:46:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:46:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:46:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:46:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:46:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:46:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:46:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:46:52 INFO MSTransformManager::open Select data 2026-04-25 06:46:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:46:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:46:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 0.699877039rad' successfully parsed 2026-04-25 06:46:55 INFO phaseshift::::casa Shift phase center 2026-04-25 06:46:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:46:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:46:52.268900 End time: 2026-04-25 06:46:55.797996 2026-04-25 06:46:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:46:56 INFO phaseshift::::casa ########################################## 2026-04-25 06:46:56 INFO tclean::::casa ########################################## 2026-04-25 06:46:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:46:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:46:56 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:46:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:46:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:46:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:46:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:46:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:46:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:46:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:46:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:46:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:46:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:46:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:46:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:46:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023529 2026-04-25 06:46:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:46:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:46:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:46:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:46:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:46:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:46:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:46:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:46:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:46:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:46:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:47:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:47:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:47:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:47:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:47:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:47:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:47:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:47:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:47:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:47:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:47:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:47:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:47:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:47:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:47:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:47:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:47:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:47:04 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:47:04 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:47:04 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:47:05 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:47:05 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'] 2026-04-25 06:47:07 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:46:55.827705 End time: 2026-04-25 06:47:06.619868 2026-04-25 06:47:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:47:07 INFO tclean::::casa ########################################## 2026-04-25 06:47:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:47:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:47:07 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:47:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:47:07 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:47:07 2026****** 2026-04-25 06:47:07 INFO ImageFitter::fit+ 2026-04-25 06:47:07 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:47:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:47:07 INFO ImageFitter::fit+ --- region: 2026-04-25 06:47:07 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:47:07 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:47:07 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:47:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:47:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:47:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:47:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:47:07 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:47:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:47:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:47:07 INFO imstat::::casa ########################################## 2026-04-25 06:47:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:47:07 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:47:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:47:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:47:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:47:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:47:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:47:07 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:47:07 INFO imstat:::: Values --- 2026-04-25 06:47:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:47:07 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:47:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:47:07 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-04-25 06:47:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:47:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:47:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:47:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-25 06:47:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:47:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:47:07 INFO imstat:::: Statistics --- 2026-04-25 06:47:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:47:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:47:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:47:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:47:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-04-25 06:47:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-04-25 06:47:07 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-04-25 06:47:07 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-04-25 06:47:07 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:47:07 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778665e-05 4.999996e+00 2026-04-25 06:47:07 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:47:06.675278 End time: 2026-04-25 06:47:06.696248 2026-04-25 06:47:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:47:07 INFO imstat::::casa ########################################## 2026-04-25 06:47:07 INFO phaseshift::::casa ########################################## 2026-04-25 06:47:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:47:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40d06m0.0019' ) 2026-04-25 06:47:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:47:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:47:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:47:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:47:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:47:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:47:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:47:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:47:07 INFO MSTransformManager::open Select data 2026-04-25 06:47:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:47:09 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:47:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40d06m0.0019' successfully parsed 2026-04-25 06:47:09 INFO phaseshift::::casa Shift phase center 2026-04-25 06:47:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:47:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:47:06.709819 End time: 2026-04-25 06:47:09.862837 2026-04-25 06:47:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:47:10 INFO phaseshift::::casa ########################################## 2026-04-25 06:47:10 INFO tclean::::casa ########################################## 2026-04-25 06:47:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:47:10 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:47:10 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:47:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:47:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:47:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:47:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:47:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:47:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:47:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:47:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:47:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:47:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:47:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:47:11 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:47:11 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.018297 2026-04-25 06:47:11 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:47:11 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:47:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:47:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:47:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:47:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:47:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:47:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:47:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:47:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:47:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:47:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:47:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:47:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:47:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:47:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:47:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:47:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:47:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:47:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:47:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:47:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:47:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:47:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:47:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:47:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:47:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:47:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:47:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:47:18 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:47:19 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:47:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:47:21 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:47:09.893018 End time: 2026-04-25 06:47:20.595737 2026-04-25 06:47:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:47:21 INFO tclean::::casa ########################################## 2026-04-25 06:47:21 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:47:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:47:21 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:47:21 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:47:21 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:47:21 2026****** 2026-04-25 06:47:21 INFO ImageFitter::fit+ 2026-04-25 06:47:21 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:47:21 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:47:21 INFO ImageFitter::fit+ --- region: 2026-04-25 06:47:21 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:47:21 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:47:21 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:47:21 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:47:21 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:47:21 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:47:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:47:21 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:47:21 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:47:21 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:47:21 INFO imstat::::casa ########################################## 2026-04-25 06:47:21 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:47:21 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:47:21 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:47:21 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:47:21 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:47:21 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:47:21 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:47:21 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:47:21 INFO imstat:::: Values --- 2026-04-25 06:47:21 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:47:21 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:47:21 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:47:21 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-04-25 06:47:21 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:47:21 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:47:21 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:47:21 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-25 06:47:21 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:47:21 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:47:21 INFO imstat:::: Statistics --- 2026-04-25 06:47:21 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:47:21 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:47:21 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:47:21 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:47:21 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-04-25 06:47:21 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-04-25 06:47:21 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-04-25 06:47:21 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-04-25 06:47:21 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:47:21 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779541e-05 4.999996e+00 2026-04-25 06:47:21 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:47:20.657795 End time: 2026-04-25 06:47:20.680835 2026-04-25 06:47:21 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:47:21 INFO imstat::::casa ########################################## 2026-04-25 06:47:21 INFO phaseshift::::casa ########################################## 2026-04-25 06:47:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:47:21 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 02:40:24.0001' ) 2026-04-25 06:47:21 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:47:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:47:21 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:47:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:47:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:47:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:47:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:47:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:47:21 INFO MSTransformManager::open Select data 2026-04-25 06:47:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:47:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:47:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 02:40:24.0001' successfully parsed 2026-04-25 06:47:23 INFO phaseshift::::casa Shift phase center 2026-04-25 06:47:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:47:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:47:20.695097 End time: 2026-04-25 06:47:24.246770 2026-04-25 06:47:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:47:24 INFO phaseshift::::casa ########################################## 2026-04-25 06:47:24 INFO tclean::::casa ########################################## 2026-04-25 06:47:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:47:24 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:47:24 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:47:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:47:24 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:47:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:47:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:47:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:47:24 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:47:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:47:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:47:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:47:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:47:24 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:47:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:47:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022681 2026-04-25 06:47:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:47:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:47:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:47:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:47:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:47:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:47:27 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:47:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:47:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:47:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:47:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:47:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:47:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:47:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:47:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:47:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:47:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:47:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:47:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:47:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:47:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:47:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:47:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:47:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:47:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:47:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:47:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:47:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:47:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:47:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:47:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:47:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:47:35 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:47:24.276023 End time: 2026-04-25 06:47:35.086638 2026-04-25 06:47:35 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:47:35 INFO tclean::::casa ########################################## 2026-04-25 06:47:35 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:47:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:47:35 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:47:35 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:47:35 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:47:35 2026****** 2026-04-25 06:47:35 INFO ImageFitter::fit+ 2026-04-25 06:47:35 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:47:35 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:47:35 INFO ImageFitter::fit+ --- region: 2026-04-25 06:47:35 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:47:35 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:47:35 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:47:35 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:47:35 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:47:35 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:47:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:47:35 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-04-25 06:47:35 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:47:35 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:47:35 INFO imstat::::casa ########################################## 2026-04-25 06:47:35 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:47:35 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:47:35 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:47:35 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:47:35 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:47:35 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:47:35 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:47:35 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:47:35 INFO imstat:::: Values --- 2026-04-25 06:47:35 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:47:35 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:47:35 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:47:35 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-04-25 06:47:35 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:47:35 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:47:35 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:47:35 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-04-25 06:47:35 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:47:35 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:47:35 INFO imstat:::: Statistics --- 2026-04-25 06:47:35 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:47:35 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:47:35 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:47:35 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:47:35 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-04-25 06:47:35 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-04-25 06:47:35 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-04-25 06:47:35 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-04-25 06:47:35 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:47:35 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-04-25 06:47:35 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:47:35.141051 End time: 2026-04-25 06:47:35.162482 2026-04-25 06:47:35 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:47:35 INFO imstat::::casa ########################################## 2026-04-25 06:47:35 INFO phaseshift::::casa ########################################## 2026-04-25 06:47:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:47:35 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40.100000528deg' ) 2026-04-25 06:47:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:47:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:47:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:47:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:47:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:47:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:47:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:47:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:47:35 INFO MSTransformManager::open Select data 2026-04-25 06:47:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:47:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:47:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40.100000528deg' successfully parsed 2026-04-25 06:47:38 INFO phaseshift::::casa Shift phase center 2026-04-25 06:47:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:47:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:47:35.175341 End time: 2026-04-25 06:47:38.758755 2026-04-25 06:47:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:47:39 INFO phaseshift::::casa ########################################## 2026-04-25 06:47:39 INFO tclean::::casa ########################################## 2026-04-25 06:47:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:47:39 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:47:39 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:47:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:47:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:47:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:47:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:47:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:47:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:47:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:47:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:47:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:47:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:47:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:47:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:47:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023158 2026-04-25 06:47:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:47:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:47:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:47:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:47:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:47:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:47:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:47:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:47:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:47:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:47:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:47:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:47:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:47:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:47:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:47:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:47:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:47:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:47:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:47:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:47:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:47:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:47:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:47:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:47:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:47:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:47:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:47:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:47:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:47:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:47:48 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:47:48 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'] 2026-04-25 06:47:49 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:47:38.788673 End time: 2026-04-25 06:47:49.308403 2026-04-25 06:47:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:47:49 INFO tclean::::casa ########################################## 2026-04-25 06:47:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:47:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:47:49 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:47:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:47:49 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:47:49 2026****** 2026-04-25 06:47:49 INFO ImageFitter::fit+ 2026-04-25 06:47:49 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:47:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:47:49 INFO ImageFitter::fit+ --- region: 2026-04-25 06:47:49 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:47:49 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:47:49 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:47:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:47:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:47:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:47:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:47:49 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:47:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:47:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:47:49 INFO imstat::::casa ########################################## 2026-04-25 06:47:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:47:49 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:47:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:47:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:47:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:47:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:47:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:47:49 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:47:49 INFO imstat:::: Values --- 2026-04-25 06:47:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:47:49 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:47:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:47:49 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-04-25 06:47:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:47:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:47:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:47:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-25 06:47:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:47:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:47:49 INFO imstat:::: Statistics --- 2026-04-25 06:47:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:47:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:47:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:47:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:47:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-04-25 06:47:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-04-25 06:47:49 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-04-25 06:47:49 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-04-25 06:47:49 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:47:49 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779537e-05 4.999996e+00 2026-04-25 06:47:49 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:47:49.367400 End time: 2026-04-25 06:47:49.388118 2026-04-25 06:47:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:47:49 INFO imstat::::casa ########################################## 2026-04-25 06:47:49 INFO phaseshift::::casa ########################################## 2026-04-25 06:47:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:47:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 0.699877039rad' ) 2026-04-25 06:47:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:47:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:47:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:47:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:47:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:47:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:47:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:47:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:47:49 INFO MSTransformManager::open Select data 2026-04-25 06:47:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:47:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:47:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 0.699877039rad' successfully parsed 2026-04-25 06:47:52 INFO phaseshift::::casa Shift phase center 2026-04-25 06:47:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:47:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:47:49.401225 End time: 2026-04-25 06:47:53.113924 2026-04-25 06:47:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:47:53 INFO phaseshift::::casa ########################################## 2026-04-25 06:47:53 INFO tclean::::casa ########################################## 2026-04-25 06:47:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:47:53 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 ) 2026-04-25 06:47:53 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:47:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:47:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:47:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:47:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:47:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:47:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:47:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:47:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:47:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:47:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:47:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:47:54 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:47:54 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022065 2026-04-25 06:47:54 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:47:54 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:47:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:47:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:47:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:47:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:47:56 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:47:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:47:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:47:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:47:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:47:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:47:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:47:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:47:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:47:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:47:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:47:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:47:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:47:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:47:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:47:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:48:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:48:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:48:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:48:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:48:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:48:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:48:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:48:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:48:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:48:02 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:48:02 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'] 2026-04-25 06:48:04 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:47:53.143058 End time: 2026-04-25 06:48:03.719936 2026-04-25 06:48:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:48:04 INFO tclean::::casa ########################################## 2026-04-25 06:48:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:48:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:48:04 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) 2026-04-25 06:48:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:48:04 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:48:04 2026****** 2026-04-25 06:48:04 INFO ImageFitter::fit+ 2026-04-25 06:48:04 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:48:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:48:04 INFO ImageFitter::fit+ --- region: 2026-04-25 06:48:04 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:48:04 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:48:04 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:48:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:48:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:48:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:48:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:48:04 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) 2026-04-25 06:48:04 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:48:04 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:48:04 INFO imstat::::casa ########################################## 2026-04-25 06:48:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:48:04 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 ) 2026-04-25 06:48:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:48:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:48:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:48:04 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:48:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:48:04 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) 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:48:04 INFO imstat:::: Values --- 2026-04-25 06:48:04 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:48:04 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:48:04 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:48:04 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-04-25 06:48:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:48:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:48:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:48:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-25 06:48:04 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:48:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:48:04 INFO imstat:::: Statistics --- 2026-04-25 06:48:04 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:48:04 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:48:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:48:04 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:48:04 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-04-25 06:48:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-04-25 06:48:04 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-04-25 06:48:04 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-04-25 06:48:04 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:48:04 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778665e-05 4.999996e+00 2026-04-25 06:48:04 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:48:03.774363 End time: 2026-04-25 06:48:03.793631 2026-04-25 06:48:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:48:04 INFO imstat::::casa ########################################## 2026-04-25 06:48:04 INFO phaseshift::::casa ########################################## 2026-04-25 06:48:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:48:04 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40d06m0.0019' ) 2026-04-25 06:48:04 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:48:04 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:48:04 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:48:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:48:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:48:04 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:48:04 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:48:04 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:48:04 INFO MSTransformManager::open Select data 2026-04-25 06:48:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:48:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:48:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40d06m0.0019' successfully parsed 2026-04-25 06:48:07 INFO phaseshift::::casa Shift phase center 2026-04-25 06:48:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:48:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:48:03.806875 End time: 2026-04-25 06:48:07.278340 2026-04-25 06:48:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:48:07 INFO phaseshift::::casa ########################################## 2026-04-25 06:48:07 INFO tclean::::casa ########################################## 2026-04-25 06:48:07 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:48:07 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:48:07 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:48:07 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:48:07 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:48:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:48:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:48:07 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:48:07 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:48:07 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:48:07 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:48:07 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:48:07 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:48:07 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:48:08 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:48:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.0228 2026-04-25 06:48:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:48:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:48:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:48:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:48:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:48:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:48:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:48:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:48:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:48:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:48:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:48:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:48:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:48:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:48:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:48:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:48:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:48:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:48:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:48:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:48:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:48:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:48:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:48:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:48:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:48:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:48:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:48:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:48:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:48:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:48:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:48:17 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'] 2026-04-25 06:48:18 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:48:07.308686 End time: 2026-04-25 06:48:17.611992 2026-04-25 06:48:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:48:18 INFO tclean::::casa ########################################## 2026-04-25 06:48:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:48:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:48:18 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:48:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:48:18 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:48:18 2026****** 2026-04-25 06:48:18 INFO ImageFitter::fit+ 2026-04-25 06:48:18 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:48:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:48:18 INFO ImageFitter::fit+ --- region: 2026-04-25 06:48:18 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:48:18 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:48:18 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:48:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:48:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:48:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:48:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:48:18 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:48:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:48:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:48:18 INFO imstat::::casa ########################################## 2026-04-25 06:48:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:48:18 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:48:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:48:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:48:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:48:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:48:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:48:18 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:48:18 INFO imstat:::: Values --- 2026-04-25 06:48:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:48:18 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:48:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:48:18 INFO imstat:::: -- minimum value [min]: -7.77984e-05 Jy/beam 2026-04-25 06:48:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:48:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:48:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:48:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-25 06:48:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:48:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:48:18 INFO imstat:::: Statistics --- 2026-04-25 06:48:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:48:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:48:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:48:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:48:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86704e-05 Jy/beam 2026-04-25 06:48:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7365e-05 Jy/beam 2026-04-25 06:48:18 INFO imstat:::: -- IQR [quartile]: 3.56348e-05 Jy/beam 2026-04-25 06:48:18 INFO imstat:::: -- First quartile [q1]: -3.45131e-05 Jy/beam 2026-04-25 06:48:18 INFO imstat:::: -- Third quartile [q3]: 1.12172e-06 Jy/beam 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:48:18 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779843e-05 4.999996e+00 2026-04-25 06:48:18 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:48:17.677511 End time: 2026-04-25 06:48:17.713885 2026-04-25 06:48:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:48:18 INFO imstat::::casa ########################################## 2026-04-25 06:48:18 INFO phaseshift::::casa ########################################## 2026-04-25 06:48:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:48:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 02:40:24.0001' ) 2026-04-25 06:48:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:48:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:48:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:48:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:48:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:48:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:48:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:48:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:48:18 INFO MSTransformManager::open Select data 2026-04-25 06:48:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:48:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:48:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 02:40:24.0001' successfully parsed 2026-04-25 06:48:21 INFO phaseshift::::casa Shift phase center 2026-04-25 06:48:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:48:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:48:17.728561 End time: 2026-04-25 06:48:21.476947 2026-04-25 06:48:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:48:21 INFO phaseshift::::casa ########################################## 2026-04-25 06:48:22 INFO tclean::::casa ########################################## 2026-04-25 06:48:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:48:22 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:48:22 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:48:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:48:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:48:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:48:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:48:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:48:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:48:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:48:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:48:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:48:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:48:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:48:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:48:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021336 2026-04-25 06:48:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:48:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:48:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:48:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:48:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:48:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:48:24 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:48:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:48:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:48:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:48:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:48:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:48:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:48:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:48:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:48:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:48:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:48:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:48:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:48:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:48:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:48:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:48:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:48:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:48:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:48:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:48:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:48:30 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:48:30 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:48:30 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:48:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:48:31 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'] 2026-04-25 06:48:32 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:48:21.507875 End time: 2026-04-25 06:48:31.621875 2026-04-25 06:48:32 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:48:32 INFO tclean::::casa ########################################## 2026-04-25 06:48:32 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:48:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:48:32 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:48:32 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:48:32 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:48:32 2026****** 2026-04-25 06:48:32 INFO ImageFitter::fit+ 2026-04-25 06:48:32 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:48:32 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:48:32 INFO ImageFitter::fit+ --- region: 2026-04-25 06:48:32 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:48:32 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:48:32 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:48:32 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:48:32 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:48:32 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:48:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:48:32 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-04-25 06:48:32 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116894 Jy 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126508 Jy 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:48:32 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:48:32 INFO imstat::::casa ########################################## 2026-04-25 06:48:32 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:48:32 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:48:32 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:48:32 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:48:32 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:48:32 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:48:32 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:48:32 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:48:32 INFO imstat:::: Values --- 2026-04-25 06:48:32 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:48:32 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:48:32 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:48:32 INFO imstat:::: -- minimum value [min]: -7.78076e-05 Jy/beam 2026-04-25 06:48:32 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:48:32 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:48:32 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:48:32 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-04-25 06:48:32 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:48:32 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:48:32 INFO imstat:::: Statistics --- 2026-04-25 06:48:32 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:48:32 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:48:32 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:48:32 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:48:32 INFO imstat:::: -- Median of the pixel values [median]: -1.86848e-05 Jy/beam 2026-04-25 06:48:32 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73951e-05 Jy/beam 2026-04-25 06:48:32 INFO imstat:::: -- IQR [quartile]: 3.56676e-05 Jy/beam 2026-04-25 06:48:32 INFO imstat:::: -- First quartile [q1]: -3.45186e-05 Jy/beam 2026-04-25 06:48:32 INFO imstat:::: -- Third quartile [q3]: 1.14894e-06 Jy/beam 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:48:32 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780757e-05 4.999996e+00 2026-04-25 06:48:32 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:48:31.678326 End time: 2026-04-25 06:48:31.698913 2026-04-25 06:48:32 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:48:32 INFO imstat::::casa ########################################## 2026-04-25 06:48:32 INFO phaseshift::::casa ########################################## 2026-04-25 06:48:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:48:32 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 5.209080451rad 40.100000528deg' ) 2026-04-25 06:48:32 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:48:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:48:32 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:48:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:48:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:48:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:48:32 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:48:32 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:48:32 INFO MSTransformManager::open Select data 2026-04-25 06:48:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:48:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:48:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40.100000528deg' successfully parsed 2026-04-25 06:48:34 INFO phaseshift::::casa Shift phase center 2026-04-25 06:48:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:48:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:48:31.711649 End time: 2026-04-25 06:48:35.181987 2026-04-25 06:48:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:48:35 INFO phaseshift::::casa ########################################## 2026-04-25 06:48:35 INFO tclean::::casa ########################################## 2026-04-25 06:48:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:48:35 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:48:35 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:48:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:48:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:48:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:48:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:48:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:48:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:48:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:48:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:48:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:48:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:48:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:48:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:48:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021728 2026-04-25 06:48:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:48:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:48:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:48:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:48:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:48:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:48:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:48:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:48:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:48:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:48:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:48:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:48:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:48:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:48:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:48:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:48:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:48:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:48:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:48:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:48:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:48:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:48:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:48:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:48:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:48:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:48:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:48:44 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:48:44 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:48:44 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:48:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:48:45 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'] 2026-04-25 06:48:47 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:48:35.212342 End time: 2026-04-25 06:48:46.501398 2026-04-25 06:48:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:48:47 INFO tclean::::casa ########################################## 2026-04-25 06:48:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:48:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:48:47 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:48:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:48:47 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:48:47 2026****** 2026-04-25 06:48:47 INFO ImageFitter::fit+ 2026-04-25 06:48:47 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:48:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:48:47 INFO ImageFitter::fit+ --- region: 2026-04-25 06:48:47 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:48:47 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:48:47 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:48:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:48:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:48:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:48:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:48:47 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) 2026-04-25 06:48:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116882 Jy 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:48:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:48:47 INFO imstat::::casa ########################################## 2026-04-25 06:48:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:48:47 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:48:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:48:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:48:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:48:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:48:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:48:47 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:48:47 INFO imstat:::: Values --- 2026-04-25 06:48:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:48:47 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:48:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:48:47 INFO imstat:::: -- minimum value [min]: -7.77982e-05 Jy/beam 2026-04-25 06:48:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:48:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:48:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:48:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-25 06:48:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:48:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:48:47 INFO imstat:::: Statistics --- 2026-04-25 06:48:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:48:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:48:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:48:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:48:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86711e-05 Jy/beam 2026-04-25 06:48:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73646e-05 Jy/beam 2026-04-25 06:48:47 INFO imstat:::: -- IQR [quartile]: 3.56367e-05 Jy/beam 2026-04-25 06:48:47 INFO imstat:::: -- First quartile [q1]: -3.45138e-05 Jy/beam 2026-04-25 06:48:47 INFO imstat:::: -- Third quartile [q3]: 1.12291e-06 Jy/beam 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:48:47 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779823e-05 4.999996e+00 2026-04-25 06:48:47 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:48:46.555249 End time: 2026-04-25 06:48:46.580470 2026-04-25 06:48:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:48:47 INFO imstat::::casa ########################################## 2026-04-25 06:48:47 INFO phaseshift::::casa ########################################## 2026-04-25 06:48:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:48:47 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 5.209080451rad 0.699877039rad' ) 2026-04-25 06:48:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:48:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:48:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:48:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:48:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:48:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:48:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:48:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:48:47 INFO MSTransformManager::open Select data 2026-04-25 06:48:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:48:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:48:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 0.699877039rad' successfully parsed 2026-04-25 06:48:49 INFO phaseshift::::casa Shift phase center 2026-04-25 06:48:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:48:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:48:46.592771 End time: 2026-04-25 06:48:50.282040 2026-04-25 06:48:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:48:50 INFO phaseshift::::casa ########################################## 2026-04-25 06:48:50 INFO tclean::::casa ########################################## 2026-04-25 06:48:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:48:50 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:48:50 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:48:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:48:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:48:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:48:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:48:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:48:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:48:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:48:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:48:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:48:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:48:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:48:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:48:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02245 2026-04-25 06:48:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:48:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:48:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:48:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:48:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:48:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:48:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:48:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:48:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:48:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:48:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:48:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:48:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:48:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:48:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:48:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:48:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:48:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374443277716637, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:48:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:48:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:48:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:48:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:48:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852561634033918, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:48:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:48:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:48:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:48:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:48:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:48:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:48:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:48:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:48:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:48:59 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'] 2026-04-25 06:49:01 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:48:50.311653 End time: 2026-04-25 06:49:00.555941 2026-04-25 06:49:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:49:01 INFO tclean::::casa ########################################## 2026-04-25 06:49:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:49:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:01 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:49:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:49:01 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:49:01 2026****** 2026-04-25 06:49:01 INFO ImageFitter::fit+ 2026-04-25 06:49:01 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:49:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:49:01 INFO ImageFitter::fit+ --- region: 2026-04-25 06:49:01 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:49:01 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:49:01 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:49:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:49:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:49:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:49:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:01 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:49:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:49:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:49:01 INFO imstat::::casa ########################################## 2026-04-25 06:49:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:49:01 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:49:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:49:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:49:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:49:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:49:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:01 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:49:01 INFO imstat:::: Values --- 2026-04-25 06:49:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:49:01 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:49:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:49:01 INFO imstat:::: -- minimum value [min]: -7.77898e-05 Jy/beam 2026-04-25 06:49:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:49:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:49:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:49:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-25 06:49:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:49:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:49:01 INFO imstat:::: Statistics --- 2026-04-25 06:49:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:49:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:49:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:49:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:49:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86769e-05 Jy/beam 2026-04-25 06:49:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73662e-05 Jy/beam 2026-04-25 06:49:01 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-04-25 06:49:01 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-04-25 06:49:01 INFO imstat:::: -- Third quartile [q3]: 1.1187e-06 Jy/beam 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:49:01 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778978e-05 4.999996e+00 2026-04-25 06:49:01 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:49:00.610594 End time: 2026-04-25 06:49:00.630811 2026-04-25 06:49:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:49:01 INFO imstat::::casa ########################################## 2026-04-25 06:49:01 INFO phaseshift::::casa ########################################## 2026-04-25 06:49:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:49:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 +006d21m09.7433' ) 2026-04-25 06:49:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:49:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:49:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:49:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:49:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:49:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:49:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:49:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:49:01 INFO MSTransformManager::open Select data 2026-04-25 06:49:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:49:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:49:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 +006d21m09.7433' successfully parsed 2026-04-25 06:49:03 INFO phaseshift::::casa Shift phase center 2026-04-25 06:49:04 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:49:04 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:49:00.644473 End time: 2026-04-25 06:49:04.126190 2026-04-25 06:49:04 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:49:04 INFO phaseshift::::casa ########################################## 2026-04-25 06:49:04 INFO tclean::::casa ########################################## 2026-04-25 06:49:04 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:49:04 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:49:04 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:49:04 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:49:04 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:49:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:49:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:49:04 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:49:04 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:49:04 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:49:04 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:49:04 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:49:04 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:49:04 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:49:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:49:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021218 2026-04-25 06:49:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:49:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:49:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:49:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:49:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:49:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:49:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:49:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:49:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:49:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:49:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:49:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:49:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:49:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:49:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:49:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:49:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:49:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:49:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:49:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:49:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:49:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:49:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:49:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:49:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:49:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:49:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:49:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:49:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:49:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:49:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:49:14 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'] 2026-04-25 06:49:16 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:49:04.157160 End time: 2026-04-25 06:49:15.641774 2026-04-25 06:49:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:49:16 INFO tclean::::casa ########################################## 2026-04-25 06:49:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:49:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:16 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:49:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:49:16 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:49:16 2026****** 2026-04-25 06:49:16 INFO ImageFitter::fit+ 2026-04-25 06:49:16 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:49:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:49:16 INFO ImageFitter::fit+ --- region: 2026-04-25 06:49:16 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:49:16 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:49:16 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:49:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:49:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:49:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:49:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:16 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:49:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:49:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:49:16 INFO imstat::::casa ########################################## 2026-04-25 06:49:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:49:16 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:49:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:49:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:49:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:49:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:49:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:16 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) 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:49:16 INFO imstat:::: Values --- 2026-04-25 06:49:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:49:16 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:49:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:49:16 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-04-25 06:49:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:49:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:49:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:49:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:49:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:49:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:49:16 INFO imstat:::: Statistics --- 2026-04-25 06:49:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:49:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:49:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:49:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:49:16 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-04-25 06:49:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-04-25 06:49:16 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-04-25 06:49:16 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-04-25 06:49:16 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:49:16 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777946e-05 4.999996e+00 2026-04-25 06:49:16 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:49:15.693336 End time: 2026-04-25 06:49:15.713206 2026-04-25 06:49:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:49:16 INFO imstat::::casa ########################################## 2026-04-25 06:49:16 INFO phaseshift::::casa ########################################## 2026-04-25 06:49:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:49:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 00:25:24.6496' ) 2026-04-25 06:49:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:49:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:49:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:49:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:49:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:49:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:49:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:49:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:49:16 INFO MSTransformManager::open Select data 2026-04-25 06:49:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:49:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:49:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 00:25:24.6496' successfully parsed 2026-04-25 06:49:18 INFO phaseshift::::casa Shift phase center 2026-04-25 06:49:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:49:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:49:15.725881 End time: 2026-04-25 06:49:19.321150 2026-04-25 06:49:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:49:19 INFO phaseshift::::casa ########################################## 2026-04-25 06:49:19 INFO tclean::::casa ########################################## 2026-04-25 06:49:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:49:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:49:19 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:49:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:49:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:49:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:49:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:49:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:49:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:49:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:49:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:49:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:49:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:49:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:49:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:49:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020707 2026-04-25 06:49:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:49:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:49:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:49:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:49:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:49:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:49:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:49:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:49:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:49:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:49:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:49:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:49:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:49:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:49:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:49:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:49:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:49:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:49:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:49:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:49:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:49:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:49:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:49:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:49:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:49:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:49:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:49:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:49:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:49:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:49:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:49:29 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'] 2026-04-25 06:49:30 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:49:19.351322 End time: 2026-04-25 06:49:29.914818 2026-04-25 06:49:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:49:30 INFO tclean::::casa ########################################## 2026-04-25 06:49:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:49:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:30 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:49:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:49:30 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:49:30 2026****** 2026-04-25 06:49:30 INFO ImageFitter::fit+ 2026-04-25 06:49:30 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:49:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:49:30 INFO ImageFitter::fit+ --- region: 2026-04-25 06:49:30 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:49:30 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:49:30 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:49:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:49:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:49:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:49:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:30 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:49:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:49:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:49:30 INFO imstat::::casa ########################################## 2026-04-25 06:49:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:49:30 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:49:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:49:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:49:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:49:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:49:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:30 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-25 06:49:30 INFO imstat:::: Values --- 2026-04-25 06:49:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:49:30 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:49:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:49:30 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-04-25 06:49:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:49:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:49:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:49:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:49:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:49:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:49:30 INFO imstat:::: Statistics --- 2026-04-25 06:49:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:49:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:49:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:49:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:49:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-04-25 06:49:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-04-25 06:49:30 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-04-25 06:49:30 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-04-25 06:49:30 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:49:30 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787321e-05 4.999996e+00 2026-04-25 06:49:30 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:49:29.969877 End time: 2026-04-25 06:49:29.999505 2026-04-25 06:49:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:49:30 INFO imstat::::casa ########################################## 2026-04-25 06:49:30 INFO phaseshift::::casa ########################################## 2026-04-25 06:49:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:49:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 6.352706472deg' ) 2026-04-25 06:49:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:49:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:49:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:49:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:49:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:49:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:49:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:49:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:49:30 INFO MSTransformManager::open Select data 2026-04-25 06:49:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:49:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:49:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 6.352706472deg' successfully parsed 2026-04-25 06:49:33 INFO phaseshift::::casa Shift phase center 2026-04-25 06:49:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:49:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:49:30.013257 End time: 2026-04-25 06:49:33.561854 2026-04-25 06:49:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:49:34 INFO phaseshift::::casa ########################################## 2026-04-25 06:49:34 INFO tclean::::casa ########################################## 2026-04-25 06:49:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:49:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:49:34 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:49:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:49:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:49:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:49:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:49:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:49:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:49:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:49:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:49:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:49:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:49:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:49:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:49:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021307 2026-04-25 06:49:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:49:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:49:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:49:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:49:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:49:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:49:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:49:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:49:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:49:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:49:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:49:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:49:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:49:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:49:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:49:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:49:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:49:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:49:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:49:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:49:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:49:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:49:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:49:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:49:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:49:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:49:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:49:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:49:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:49:42 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:49:43 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:49:43 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'] 2026-04-25 06:49:44 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:49:33.591771 End time: 2026-04-25 06:49:44.146019 2026-04-25 06:49:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:49:44 INFO tclean::::casa ########################################## 2026-04-25 06:49:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:49:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:44 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:49:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:49:44 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:49:44 2026****** 2026-04-25 06:49:44 INFO ImageFitter::fit+ 2026-04-25 06:49:44 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:49:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:49:44 INFO ImageFitter::fit+ --- region: 2026-04-25 06:49:44 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:49:44 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:49:44 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:49:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:49:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:49:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:49:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:44 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:49:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:49:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:49:44 INFO imstat::::casa ########################################## 2026-04-25 06:49:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:49:44 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:49:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:49:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:49:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:49:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:49:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:44 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:49:44 INFO imstat:::: Values --- 2026-04-25 06:49:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:49:44 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:49:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:49:44 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-04-25 06:49:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:49:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:49:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:49:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:49:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:49:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:49:44 INFO imstat:::: Statistics --- 2026-04-25 06:49:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:49:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:49:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:49:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:49:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-04-25 06:49:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-04-25 06:49:44 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-04-25 06:49:44 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-04-25 06:49:44 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:49:44 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777703e-05 4.999996e+00 2026-04-25 06:49:44 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:49:44.202982 End time: 2026-04-25 06:49:44.226928 2026-04-25 06:49:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:49:44 INFO imstat::::casa ########################################## 2026-04-25 06:49:44 INFO phaseshift::::casa ########################################## 2026-04-25 06:49:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:49:44 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 05h00m21.5326 0.110875644rad' ) 2026-04-25 06:49:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:49:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:49:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:49:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:49:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:49:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:49:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:49:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:49:44 INFO MSTransformManager::open Select data 2026-04-25 06:49:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:49:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:49:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 0.110875644rad' successfully parsed 2026-04-25 06:49:47 INFO phaseshift::::casa Shift phase center 2026-04-25 06:49:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:49:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:49:44.240391 End time: 2026-04-25 06:49:47.977023 2026-04-25 06:49:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:49:48 INFO phaseshift::::casa ########################################## 2026-04-25 06:49:48 INFO tclean::::casa ########################################## 2026-04-25 06:49:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:49:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:49:48 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:49:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:49:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:49:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:49:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:49:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:49:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:49:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:49:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:49:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:49:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:49:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:49:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:49:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020892 2026-04-25 06:49:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:49:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:49:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:49:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:49:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:49:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:49:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:49:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:49:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:49:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:49:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:49:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:49:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:49:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:49:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:49:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:49:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:49:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:49:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:49:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:49:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:49:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:49:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:49:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:49:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:49:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:49:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:49:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:49:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:49:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:49:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:49:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:49:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:49:58 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:49:48.006480 End time: 2026-04-25 06:49:58.127005 2026-04-25 06:49:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:49:58 INFO tclean::::casa ########################################## 2026-04-25 06:49:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:49:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:58 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:49:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:49:58 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:49:58 2026****** 2026-04-25 06:49:58 INFO ImageFitter::fit+ 2026-04-25 06:49:58 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:49:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:49:58 INFO ImageFitter::fit+ --- region: 2026-04-25 06:49:58 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:49:58 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:49:58 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:49:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:49:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:49:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:49:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:58 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:49:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:49:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:49:58 INFO imstat::::casa ########################################## 2026-04-25 06:49:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:49:58 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:49:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:49:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:49:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:49:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:49:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:49:58 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:49:58 INFO imstat:::: Values --- 2026-04-25 06:49:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:49:58 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:49:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:49:58 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-04-25 06:49:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:49:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:49:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:49:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-25 06:49:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:49:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:49:58 INFO imstat:::: Statistics --- 2026-04-25 06:49:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:49:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:49:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:49:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:49:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-04-25 06:49:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-04-25 06:49:58 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-04-25 06:49:58 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-04-25 06:49:58 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:49:58 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778491e-05 4.999996e+00 2026-04-25 06:49:58 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:49:58.182502 End time: 2026-04-25 06:49:58.203103 2026-04-25 06:49:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:49:58 INFO imstat::::casa ########################################## 2026-04-25 06:49:58 INFO phaseshift::::casa ########################################## 2026-04-25 06:49:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:49:58 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 +006d21m09.7433' ) 2026-04-25 06:49:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:49:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:49:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:49:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:49:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:49:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:49:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:49:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:49:58 INFO MSTransformManager::open Select data 2026-04-25 06:49:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:50:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:50:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 +006d21m09.7433' successfully parsed 2026-04-25 06:50:01 INFO phaseshift::::casa Shift phase center 2026-04-25 06:50:01 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:50:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:49:58.216089 End time: 2026-04-25 06:50:01.370132 2026-04-25 06:50:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:50:01 INFO phaseshift::::casa ########################################## 2026-04-25 06:50:01 INFO tclean::::casa ########################################## 2026-04-25 06:50:01 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:50:01 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:50:01 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:50:01 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:50:01 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:50:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:50:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:50:02 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:50:02 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:50:02 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:50:02 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:50:02 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:50:02 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:50:02 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:50:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:50:03 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022925 2026-04-25 06:50:03 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:50:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:50:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:50:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:50:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:50:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:50:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:50:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:50:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:50:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:50:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:50:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:50:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:50:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:50:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:50:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:50:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:50:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:50:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:50:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:50:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:50:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:50:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:50:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:50:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:50:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:50:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:50:10 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:50:10 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:50:10 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:50:11 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:50:11 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'] 2026-04-25 06:50:12 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:50:01.400777 End time: 2026-04-25 06:50:12.149001 2026-04-25 06:50:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:50:12 INFO tclean::::casa ########################################## 2026-04-25 06:50:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:50:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:50:12 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:50:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:50:12 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:50:12 2026****** 2026-04-25 06:50:12 INFO ImageFitter::fit+ 2026-04-25 06:50:12 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:50:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:50:12 INFO ImageFitter::fit+ --- region: 2026-04-25 06:50:12 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:50:12 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:50:12 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:50:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:50:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:50:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:50:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:50:12 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:50:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:50:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:50:12 INFO imstat::::casa ########################################## 2026-04-25 06:50:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:50:12 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:50:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:50:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:50:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:50:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:50:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:50:12 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:50:12 INFO imstat:::: Values --- 2026-04-25 06:50:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:50:12 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:50:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:50:12 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-04-25 06:50:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:50:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:50:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:50:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:50:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:50:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:50:12 INFO imstat:::: Statistics --- 2026-04-25 06:50:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:50:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:50:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:50:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:50:12 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-04-25 06:50:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-04-25 06:50:12 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-04-25 06:50:12 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-04-25 06:50:12 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:50:12 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777946e-05 4.999996e+00 2026-04-25 06:50:12 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:50:12.211480 End time: 2026-04-25 06:50:12.231945 2026-04-25 06:50:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:50:12 INFO imstat::::casa ########################################## 2026-04-25 06:50:12 INFO phaseshift::::casa ########################################## 2026-04-25 06:50:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:50:12 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 00:25:24.6496' ) 2026-04-25 06:50:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:50:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:50:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:50:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:50:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:50:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:50:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:50:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:50:12 INFO MSTransformManager::open Select data 2026-04-25 06:50:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:50:15 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:50:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 00:25:24.6496' successfully parsed 2026-04-25 06:50:15 INFO phaseshift::::casa Shift phase center 2026-04-25 06:50:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:50:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:50:12.244618 End time: 2026-04-25 06:50:15.529077 2026-04-25 06:50:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:50:16 INFO phaseshift::::casa ########################################## 2026-04-25 06:50:16 INFO tclean::::casa ########################################## 2026-04-25 06:50:16 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:50:16 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:50:16 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:50:16 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:50:16 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:50:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:50:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:50:16 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:50:16 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:50:16 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:50:16 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:50:16 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:50:16 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:50:16 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:50:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:50:17 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02209 2026-04-25 06:50:17 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:50:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:50:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:50:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:50:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:50:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:50:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:50:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:50:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:50:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:50:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:50:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:50:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:50:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:50:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:50:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:50:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:50:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:50:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:50:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:50:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:50:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:50:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:50:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:50:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:50:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:50:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:50:24 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:50:24 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:50:24 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:50:25 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:50:25 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'] 2026-04-25 06:50:26 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:50:15.559854 End time: 2026-04-25 06:50:26.245075 2026-04-25 06:50:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:50:26 INFO tclean::::casa ########################################## 2026-04-25 06:50:26 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:50:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:50:26 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) 2026-04-25 06:50:26 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:50:26 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:50:26 2026****** 2026-04-25 06:50:26 INFO ImageFitter::fit+ 2026-04-25 06:50:26 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:50:26 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:50:26 INFO ImageFitter::fit+ --- region: 2026-04-25 06:50:26 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:50:26 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:50:26 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:50:26 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:50:26 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:50:26 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:50:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:50:26 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) 2026-04-25 06:50:26 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:50:26 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:50:26 INFO imstat::::casa ########################################## 2026-04-25 06:50:26 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:50:26 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 ) 2026-04-25 06:50:26 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:50:26 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:50:26 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:50:26 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:50:26 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:50:26 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-25 06:50:26 INFO imstat:::: Values --- 2026-04-25 06:50:26 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:50:26 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:50:26 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:50:26 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-04-25 06:50:26 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:50:26 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:50:26 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:50:26 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:50:26 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:50:26 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:50:26 INFO imstat:::: Statistics --- 2026-04-25 06:50:26 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:50:26 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:50:26 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:50:26 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:50:26 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-04-25 06:50:26 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-04-25 06:50:26 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-04-25 06:50:26 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-04-25 06:50:26 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:50:26 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787321e-05 4.999996e+00 2026-04-25 06:50:26 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:50:26.303444 End time: 2026-04-25 06:50:26.333740 2026-04-25 06:50:26 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:50:26 INFO imstat::::casa ########################################## 2026-04-25 06:50:26 INFO phaseshift::::casa ########################################## 2026-04-25 06:50:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:50:26 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 6.352706472deg' ) 2026-04-25 06:50:26 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:50:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:50:26 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:50:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:50:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:50:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:50:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:50:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:50:26 INFO MSTransformManager::open Select data 2026-04-25 06:50:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:50:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:50:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 6.352706472deg' successfully parsed 2026-04-25 06:50:29 INFO phaseshift::::casa Shift phase center 2026-04-25 06:50:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:50:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:50:26.346844 End time: 2026-04-25 06:50:29.698876 2026-04-25 06:50:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:50:30 INFO phaseshift::::casa ########################################## 2026-04-25 06:50:30 INFO tclean::::casa ########################################## 2026-04-25 06:50:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:50:30 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:50:30 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:50:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:50:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:50:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:50:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:50:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:50:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:50:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:50:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:50:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:50:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:50:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:50:31 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:50:31 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024484 2026-04-25 06:50:31 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:50:31 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:50:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:50:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:50:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:50:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:50:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:50:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:50:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:50:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:50:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:50:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:50:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:50:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:50:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:50:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:50:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:50:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:50:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:50:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:50:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:50:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:50:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:50:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:50:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:50:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:50:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:50:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:50:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:50:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:50:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:50:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:50:41 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:50:29.728539 End time: 2026-04-25 06:50:41.054285 2026-04-25 06:50:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:50:41 INFO tclean::::casa ########################################## 2026-04-25 06:50:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:50:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:50:41 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:50:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:50:41 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:50:41 2026****** 2026-04-25 06:50:41 INFO ImageFitter::fit+ 2026-04-25 06:50:41 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:50:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:50:41 INFO ImageFitter::fit+ --- region: 2026-04-25 06:50:41 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:50:41 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:50:41 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:50:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:50:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:50:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:50:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:50:41 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:50:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:50:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:50:41 INFO imstat::::casa ########################################## 2026-04-25 06:50:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:50:41 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:50:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:50:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:50:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:50:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:50:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:50:41 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:50:41 INFO imstat:::: Values --- 2026-04-25 06:50:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:50:41 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:50:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:50:41 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-04-25 06:50:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:50:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:50:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:50:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:50:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:50:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:50:41 INFO imstat:::: Statistics --- 2026-04-25 06:50:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:50:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:50:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:50:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:50:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-04-25 06:50:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-04-25 06:50:41 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-04-25 06:50:41 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-04-25 06:50:41 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:50:41 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777703e-05 4.999996e+00 2026-04-25 06:50:41 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:50:41.110453 End time: 2026-04-25 06:50:41.141058 2026-04-25 06:50:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:50:41 INFO imstat::::casa ########################################## 2026-04-25 06:50:41 INFO phaseshift::::casa ########################################## 2026-04-25 06:50:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:50:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 0.110875644rad' ) 2026-04-25 06:50:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:50:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:50:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:50:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:50:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:50:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:50:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:50:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:50:41 INFO MSTransformManager::open Select data 2026-04-25 06:50:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:50:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:50:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 0.110875644rad' successfully parsed 2026-04-25 06:50:44 INFO phaseshift::::casa Shift phase center 2026-04-25 06:50:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:50:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:50:41.154623 End time: 2026-04-25 06:50:44.685090 2026-04-25 06:50:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:50:45 INFO phaseshift::::casa ########################################## 2026-04-25 06:50:45 INFO tclean::::casa ########################################## 2026-04-25 06:50:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:50:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:50:45 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:50:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:50:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:50:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:50:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:50:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:50:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:50:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:50:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:50:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:50:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:50:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:50:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:50:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021393 2026-04-25 06:50:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:50:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:50:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:50:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:50:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:50:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:50:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:50:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:50:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:50:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:50:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:50:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:50:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:50:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:50:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:50:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:50:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:50:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:50:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:50:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:50:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:50:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:50:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:50:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:50:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:50:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:50:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:50:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:50:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:50:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:50:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:50:54 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:50:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:50:55 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:50:44.715224 End time: 2026-04-25 06:50:55.286111 2026-04-25 06:50:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:50:55 INFO tclean::::casa ########################################## 2026-04-25 06:50:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:50:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:50:55 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) 2026-04-25 06:50:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:50:55 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:50:55 2026****** 2026-04-25 06:50:55 INFO ImageFitter::fit+ 2026-04-25 06:50:55 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:50:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:50:55 INFO ImageFitter::fit+ --- region: 2026-04-25 06:50:55 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:50:55 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:50:55 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:50:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:50:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:50:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:50:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:50:55 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) 2026-04-25 06:50:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:50:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:50:55 INFO imstat::::casa ########################################## 2026-04-25 06:50:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:50:55 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 ) 2026-04-25 06:50:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:50:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:50:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:50:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:50:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:50:55 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) 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:50:55 INFO imstat:::: Values --- 2026-04-25 06:50:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:50:55 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:50:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:50:55 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-04-25 06:50:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:50:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:50:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:50:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-25 06:50:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:50:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:50:55 INFO imstat:::: Statistics --- 2026-04-25 06:50:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:50:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:50:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:50:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:50:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-04-25 06:50:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-04-25 06:50:55 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-04-25 06:50:55 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-04-25 06:50:55 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:50:55 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778491e-05 4.999996e+00 2026-04-25 06:50:55 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:50:55.349046 End time: 2026-04-25 06:50:55.368111 2026-04-25 06:50:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:50:55 INFO imstat::::casa ########################################## 2026-04-25 06:50:55 INFO phaseshift::::casa ########################################## 2026-04-25 06:50:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:50:55 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg +006d21m09.7433' ) 2026-04-25 06:50:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:50:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:50:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:50:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:50:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:50:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:50:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:50:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:50:55 INFO MSTransformManager::open Select data 2026-04-25 06:50:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:50:58 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:50:58 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg +006d21m09.7433' successfully parsed 2026-04-25 06:50:58 INFO phaseshift::::casa Shift phase center 2026-04-25 06:50:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:50:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:50:55.381158 End time: 2026-04-25 06:50:59.074137 2026-04-25 06:50:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:50:59 INFO phaseshift::::casa ########################################## 2026-04-25 06:50:59 INFO tclean::::casa ########################################## 2026-04-25 06:50:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:50:59 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:50:59 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:50:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:50:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:50:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:50:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:50:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:50:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:50:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:50:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:50:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:50:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:50:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:51:00 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:51:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02149 2026-04-25 06:51:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:51:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:51:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:51:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:51:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:51:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:51:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:51:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:51:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:51:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:51:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:51:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:51:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:51:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:51:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:51:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:51:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:51:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:51:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:51:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:51:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:51:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:51:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:51:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:51:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:51:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:51:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:51:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:51:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:51:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:51:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:51:08 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'] 2026-04-25 06:51:09 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:50:59.104071 End time: 2026-04-25 06:51:09.250103 2026-04-25 06:51:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:51:09 INFO tclean::::casa ########################################## 2026-04-25 06:51:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:51:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:51:09 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:51:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:51:09 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:51:09 2026****** 2026-04-25 06:51:09 INFO ImageFitter::fit+ 2026-04-25 06:51:09 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:51:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:51:09 INFO ImageFitter::fit+ --- region: 2026-04-25 06:51:09 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:51:09 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:51:09 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:51:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:51:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:51:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:51:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:51:09 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:51:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116867 Jy 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126483 Jy 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:51:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:51:09 INFO imstat::::casa ########################################## 2026-04-25 06:51:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:51:09 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:51:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:51:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:51:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:51:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:51:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:51:09 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:51:09 INFO imstat:::: Values --- 2026-04-25 06:51:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:51:09 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:51:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:51:09 INFO imstat:::: -- minimum value [min]: -7.77768e-05 Jy/beam 2026-04-25 06:51:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:51:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:51:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:51:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:51:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:51:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:51:09 INFO imstat:::: Statistics --- 2026-04-25 06:51:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:51:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:51:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:51:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:51:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-04-25 06:51:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73609e-05 Jy/beam 2026-04-25 06:51:09 INFO imstat:::: -- IQR [quartile]: 3.56013e-05 Jy/beam 2026-04-25 06:51:09 INFO imstat:::: -- First quartile [q1]: -3.4507e-05 Jy/beam 2026-04-25 06:51:09 INFO imstat:::: -- Third quartile [q3]: 1.09435e-06 Jy/beam 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:51:09 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777678e-05 4.999996e+00 2026-04-25 06:51:09 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:51:09.309581 End time: 2026-04-25 06:51:09.329957 2026-04-25 06:51:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:51:09 INFO imstat::::casa ########################################## 2026-04-25 06:51:09 INFO phaseshift::::casa ########################################## 2026-04-25 06:51:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:51:09 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 00:25:24.6496' ) 2026-04-25 06:51:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:51:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:51:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:51:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:51:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:51:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:51:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:51:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:51:09 INFO MSTransformManager::open Select data 2026-04-25 06:51:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:51:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:51:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 00:25:24.6496' successfully parsed 2026-04-25 06:51:12 INFO phaseshift::::casa Shift phase center 2026-04-25 06:51:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:51:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:51:09.342981 End time: 2026-04-25 06:51:13.099961 2026-04-25 06:51:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:51:13 INFO phaseshift::::casa ########################################## 2026-04-25 06:51:13 INFO tclean::::casa ########################################## 2026-04-25 06:51:13 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:51:13 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:51:13 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:51:13 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:51:13 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:51:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:51:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:51:13 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:51:13 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:51:13 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:51:13 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:51:13 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:51:13 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:51:13 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:51:14 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:51:14 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021617 2026-04-25 06:51:14 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:51:14 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:51:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:51:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:51:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:51:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:51:16 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:51:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:51:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:51:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:51:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:51:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:51:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:51:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:51:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:51:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:51:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:51:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:51:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:51:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:51:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:51:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:51:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:51:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:51:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:51:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:51:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:51:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:51:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:51:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:51:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:51:23 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'] 2026-04-25 06:51:24 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:51:13.129406 End time: 2026-04-25 06:51:23.816508 2026-04-25 06:51:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:51:24 INFO tclean::::casa ########################################## 2026-04-25 06:51:24 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:51:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:51:24 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:51:24 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:51:24 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:51:24 2026****** 2026-04-25 06:51:24 INFO ImageFitter::fit+ 2026-04-25 06:51:24 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:51:24 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:51:24 INFO ImageFitter::fit+ --- region: 2026-04-25 06:51:24 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:51:24 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:51:24 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:51:24 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:51:24 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:51:24 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:51:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:51:24 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:51:24 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116903 Jy 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126517 Jy 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:51:24 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:51:24 INFO imstat::::casa ########################################## 2026-04-25 06:51:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:51:24 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:51:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:51:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:51:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:51:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:51:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:51:24 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-25 06:51:24 INFO imstat:::: Values --- 2026-04-25 06:51:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:51:24 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:51:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:51:24 INFO imstat:::: -- minimum value [min]: -7.78731e-05 Jy/beam 2026-04-25 06:51:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:51:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:51:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:51:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:51:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:51:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:51:24 INFO imstat:::: Statistics --- 2026-04-25 06:51:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:51:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:51:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:51:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:51:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86503e-05 Jy/beam 2026-04-25 06:51:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73798e-05 Jy/beam 2026-04-25 06:51:24 INFO imstat:::: -- IQR [quartile]: 3.56966e-05 Jy/beam 2026-04-25 06:51:24 INFO imstat:::: -- First quartile [q1]: -3.45352e-05 Jy/beam 2026-04-25 06:51:24 INFO imstat:::: -- Third quartile [q3]: 1.16146e-06 Jy/beam 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:51:24 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787306e-05 4.999996e+00 2026-04-25 06:51:24 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:51:23.883523 End time: 2026-04-25 06:51:23.904878 2026-04-25 06:51:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:51:24 INFO imstat::::casa ########################################## 2026-04-25 06:51:24 INFO phaseshift::::casa ########################################## 2026-04-25 06:51:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:51:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 6.352706472deg' ) 2026-04-25 06:51:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:51:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:51:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:51:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:51:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:51:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:51:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:51:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:51:24 INFO MSTransformManager::open Select data 2026-04-25 06:51:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:51:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:51:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 6.352706472deg' successfully parsed 2026-04-25 06:51:27 INFO phaseshift::::casa Shift phase center 2026-04-25 06:51:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:51:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:51:23.918886 End time: 2026-04-25 06:51:27.721826 2026-04-25 06:51:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:51:28 INFO phaseshift::::casa ########################################## 2026-04-25 06:51:28 INFO tclean::::casa ########################################## 2026-04-25 06:51:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:51:28 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 ) 2026-04-25 06:51:28 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:51:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:51:28 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:51:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:51:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:51:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:51:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:51:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:51:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:51:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:51:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:51:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:51:29 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:51:29 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023457 2026-04-25 06:51:29 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:51:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:51:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:51:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:51:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:51:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:51:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:51:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:51:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:51:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:51:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:51:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:51:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:51:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:51:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:51:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:51:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:51:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:51:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:51:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:51:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:51:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:51:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:51:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:51:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:51:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:51:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:51:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:51:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:51:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:51:37 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:51:37 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'] 2026-04-25 06:51:39 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:51:27.751308 End time: 2026-04-25 06:51:38.543588 2026-04-25 06:51:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:51:39 INFO tclean::::casa ########################################## 2026-04-25 06:51:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:51:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:51:39 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) 2026-04-25 06:51:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:51:39 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:51:39 2026****** 2026-04-25 06:51:39 INFO ImageFitter::fit+ 2026-04-25 06:51:39 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:51:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:51:39 INFO ImageFitter::fit+ --- region: 2026-04-25 06:51:39 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:51:39 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:51:39 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:51:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:51:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:51:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:51:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:51:39 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) 2026-04-25 06:51:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011687 Jy 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:51:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:51:39 INFO imstat::::casa ########################################## 2026-04-25 06:51:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:51:39 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 ) 2026-04-25 06:51:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:51:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:51:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:51:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:51:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:51:39 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:51:39 INFO imstat:::: Values --- 2026-04-25 06:51:39 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:51:39 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:51:39 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:51:39 INFO imstat:::: -- minimum value [min]: -7.77771e-05 Jy/beam 2026-04-25 06:51:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:51:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:51:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:51:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:51:39 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:51:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:51:39 INFO imstat:::: Statistics --- 2026-04-25 06:51:39 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:51:39 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:51:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:51:39 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:51:39 INFO imstat:::: -- Median of the pixel values [median]: -1.86715e-05 Jy/beam 2026-04-25 06:51:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73619e-05 Jy/beam 2026-04-25 06:51:39 INFO imstat:::: -- IQR [quartile]: 3.56021e-05 Jy/beam 2026-04-25 06:51:39 INFO imstat:::: -- First quartile [q1]: -3.45061e-05 Jy/beam 2026-04-25 06:51:39 INFO imstat:::: -- Third quartile [q3]: 1.09605e-06 Jy/beam 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:51:39 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777705e-05 4.999996e+00 2026-04-25 06:51:39 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:51:38.599675 End time: 2026-04-25 06:51:38.623589 2026-04-25 06:51:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:51:39 INFO imstat::::casa ########################################## 2026-04-25 06:51:39 INFO phaseshift::::casa ########################################## 2026-04-25 06:51:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:51:39 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 0.110875644rad' ) 2026-04-25 06:51:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:51:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:51:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:51:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:51:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:51:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:51:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:51:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:51:39 INFO MSTransformManager::open Select data 2026-04-25 06:51:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:51:41 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:51:41 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 0.110875644rad' successfully parsed 2026-04-25 06:51:41 INFO phaseshift::::casa Shift phase center 2026-04-25 06:51:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:51:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:51:38.636863 End time: 2026-04-25 06:51:41.985746 2026-04-25 06:51:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:51:42 INFO phaseshift::::casa ########################################## 2026-04-25 06:51:42 INFO tclean::::casa ########################################## 2026-04-25 06:51:42 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:51:42 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 ) 2026-04-25 06:51:42 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:51:42 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:51:42 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:51:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:51:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:51:42 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:51:42 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:51:42 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:51:42 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:51:42 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:51:42 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:51:42 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:51:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:51:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022416 2026-04-25 06:51:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:51:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:51:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:51:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:51:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:51:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:51:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:51:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:51:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:51:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:51:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:51:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:51:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:51:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:51:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:51:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:51:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:51:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:51:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:51:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:51:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:51:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:51:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:51:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:51:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:51:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:51:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:51:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:51:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:51:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:51:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:51:52 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'] 2026-04-25 06:51:53 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:51:42.015164 End time: 2026-04-25 06:51:52.789943 2026-04-25 06:51:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:51:53 INFO tclean::::casa ########################################## 2026-04-25 06:51:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:51:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:51:53 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:51:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:51:53 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:51:53 2026****** 2026-04-25 06:51:53 INFO ImageFitter::fit+ 2026-04-25 06:51:53 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:51:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:51:53 INFO ImageFitter::fit+ --- region: 2026-04-25 06:51:53 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:51:53 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:51:53 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:51:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:51:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:51:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:51:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:51:53 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:51:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126482 Jy 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:51:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:51:53 INFO imstat::::casa ########################################## 2026-04-25 06:51:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:51:53 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:51:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:51:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:51:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:51:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:51:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:51:53 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:51:53 INFO imstat:::: Values --- 2026-04-25 06:51:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:51:53 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:51:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:51:53 INFO imstat:::: -- minimum value [min]: -7.77855e-05 Jy/beam 2026-04-25 06:51:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:51:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:51:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:51:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-25 06:51:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:51:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:51:53 INFO imstat:::: Statistics --- 2026-04-25 06:51:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:51:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:51:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:51:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:51:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86732e-05 Jy/beam 2026-04-25 06:51:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73562e-05 Jy/beam 2026-04-25 06:51:53 INFO imstat:::: -- IQR [quartile]: 3.56008e-05 Jy/beam 2026-04-25 06:51:53 INFO imstat:::: -- First quartile [q1]: -3.45107e-05 Jy/beam 2026-04-25 06:51:53 INFO imstat:::: -- Third quartile [q3]: 1.09015e-06 Jy/beam 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:51:53 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778549e-05 4.999996e+00 2026-04-25 06:51:53 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:51:52.846935 End time: 2026-04-25 06:51:52.878835 2026-04-25 06:51:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:51:53 INFO imstat::::casa ########################################## 2026-04-25 06:51:53 INFO phaseshift::::casa ########################################## 2026-04-25 06:51:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:51:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad +006d21m09.7433' ) 2026-04-25 06:51:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:51:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:51:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:51:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:51:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:51:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:51:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:51:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:51:53 INFO MSTransformManager::open Select data 2026-04-25 06:51:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:51:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:51:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad +006d21m09.7433' successfully parsed 2026-04-25 06:51:56 INFO phaseshift::::casa Shift phase center 2026-04-25 06:51:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:51:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:51:52.894204 End time: 2026-04-25 06:51:56.454251 2026-04-25 06:51:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:51:56 INFO phaseshift::::casa ########################################## 2026-04-25 06:51:56 INFO tclean::::casa ########################################## 2026-04-25 06:51:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:51:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:51:56 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:51:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:51:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:51:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:51:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:51:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:51:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:51:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:51:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:51:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:51:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:51:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:51:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:51:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021973 2026-04-25 06:51:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:51:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:51:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:51:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:51:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:51:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:51:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:51:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:51:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:52:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:52:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:52:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:52:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:52:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:52:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:52:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:52:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:52:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:52:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:52:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:52:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:52:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:52:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:52:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:52:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:52:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:52:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:52:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:52:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:52:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:52:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:52:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:52:06 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'] 2026-04-25 06:52:07 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:51:56.484896 End time: 2026-04-25 06:52:07.143398 2026-04-25 06:52:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:52:07 INFO tclean::::casa ########################################## 2026-04-25 06:52:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:52:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:52:07 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:52:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:52:07 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:52:07 2026****** 2026-04-25 06:52:07 INFO ImageFitter::fit+ 2026-04-25 06:52:07 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:52:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:52:07 INFO ImageFitter::fit+ --- region: 2026-04-25 06:52:07 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:52:07 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:52:07 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:52:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:52:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:52:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:52:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:52:07 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:52:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:52:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:52:07 INFO imstat::::casa ########################################## 2026-04-25 06:52:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:52:07 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:52:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:52:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:52:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:52:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:52:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:52:07 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:52:07 INFO imstat:::: Values --- 2026-04-25 06:52:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:52:07 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:52:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:52:07 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-04-25 06:52:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:52:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:52:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:52:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:52:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:52:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:52:07 INFO imstat:::: Statistics --- 2026-04-25 06:52:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:52:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:52:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:52:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:52:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86669e-05 Jy/beam 2026-04-25 06:52:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73635e-05 Jy/beam 2026-04-25 06:52:07 INFO imstat:::: -- IQR [quartile]: 3.56081e-05 Jy/beam 2026-04-25 06:52:07 INFO imstat:::: -- First quartile [q1]: -3.45085e-05 Jy/beam 2026-04-25 06:52:07 INFO imstat:::: -- Third quartile [q3]: 1.09959e-06 Jy/beam 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:52:07 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778013e-05 4.999996e+00 2026-04-25 06:52:07 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:52:07.200998 End time: 2026-04-25 06:52:07.224044 2026-04-25 06:52:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:52:07 INFO imstat::::casa ########################################## 2026-04-25 06:52:07 INFO phaseshift::::casa ########################################## 2026-04-25 06:52:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:52:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 00:25:24.6496' ) 2026-04-25 06:52:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:52:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:52:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:52:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:52:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:52:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:52:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:52:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:52:07 INFO MSTransformManager::open Select data 2026-04-25 06:52:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:52:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:52:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 00:25:24.6496' successfully parsed 2026-04-25 06:52:10 INFO phaseshift::::casa Shift phase center 2026-04-25 06:52:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:52:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:52:07.238594 End time: 2026-04-25 06:52:10.828176 2026-04-25 06:52:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:52:11 INFO phaseshift::::casa ########################################## 2026-04-25 06:52:11 INFO tclean::::casa ########################################## 2026-04-25 06:52:11 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:52:11 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 ) 2026-04-25 06:52:11 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:52:11 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:52:11 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:52:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:52:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:52:11 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:52:11 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:52:11 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:52:11 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:52:11 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:52:11 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:52:11 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:52:12 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:52:12 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02117 2026-04-25 06:52:12 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:52:12 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:52:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:52:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:52:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:52:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:52:14 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:52:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:52:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:52:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:52:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:52:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:52:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:52:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:52:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:52:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:52:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:52:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:52:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:52:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:52:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:52:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:52:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:52:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:52:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:52:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:52:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:52:20 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:52:20 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:52:20 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:52:21 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:52:21 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:52:22 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:52:10.857897 End time: 2026-04-25 06:52:21.956293 2026-04-25 06:52:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:52:22 INFO tclean::::casa ########################################## 2026-04-25 06:52:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:52:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:52:22 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:52:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:52:22 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:52:22 2026****** 2026-04-25 06:52:22 INFO ImageFitter::fit+ 2026-04-25 06:52:22 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:52:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:52:22 INFO ImageFitter::fit+ --- region: 2026-04-25 06:52:22 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:52:22 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:52:22 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:52:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:52:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:52:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:52:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:52:22 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:52:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116905 Jy 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000041 +/- 0.000777 arcsec 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- ra: 127.999941 +/- 0.000127 pixels 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- dec: 127.999954 +/- 0.000097 pixels 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:52:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:52:22 INFO imstat::::casa ########################################## 2026-04-25 06:52:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:52:22 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:52:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:52:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:52:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:52:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:52:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:52:22 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-25 06:52:22 INFO imstat:::: Values --- 2026-04-25 06:52:22 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:52:22 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:52:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:52:22 INFO imstat:::: -- minimum value [min]: -7.78774e-05 Jy/beam 2026-04-25 06:52:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:52:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:52:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:52:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:52:22 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:52:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:52:22 INFO imstat:::: Statistics --- 2026-04-25 06:52:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:52:22 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:52:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:52:22 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:52:22 INFO imstat:::: -- Median of the pixel values [median]: -1.86532e-05 Jy/beam 2026-04-25 06:52:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73779e-05 Jy/beam 2026-04-25 06:52:22 INFO imstat:::: -- IQR [quartile]: 3.5701e-05 Jy/beam 2026-04-25 06:52:22 INFO imstat:::: -- First quartile [q1]: -3.45356e-05 Jy/beam 2026-04-25 06:52:22 INFO imstat:::: -- Third quartile [q3]: 1.16544e-06 Jy/beam 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:52:22 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787745e-05 4.999996e+00 2026-04-25 06:52:22 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:52:22.010317 End time: 2026-04-25 06:52:22.030778 2026-04-25 06:52:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:52:22 INFO imstat::::casa ########################################## 2026-04-25 06:52:22 INFO phaseshift::::casa ########################################## 2026-04-25 06:52:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:52:22 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 6.352706472deg' ) 2026-04-25 06:52:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:52:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:52:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:52:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:52:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:52:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:52:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:52:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:52:22 INFO MSTransformManager::open Select data 2026-04-25 06:52:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:52:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:52:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 6.352706472deg' successfully parsed 2026-04-25 06:52:25 INFO phaseshift::::casa Shift phase center 2026-04-25 06:52:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:52:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:52:22.043882 End time: 2026-04-25 06:52:25.344743 2026-04-25 06:52:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:52:25 INFO phaseshift::::casa ########################################## 2026-04-25 06:52:25 INFO tclean::::casa ########################################## 2026-04-25 06:52:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:52:25 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:52:25 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:52:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:52:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:52:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:52:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:52:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:52:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:52:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:52:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:52:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:52:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:52:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:52:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:52:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023488 2026-04-25 06:52:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:52:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:52:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:52:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:52:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:52:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:52:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:52:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:52:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:52:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:52:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:52:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:52:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:52:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:52:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:52:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:52:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:52:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:52:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:52:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:52:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:52:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:52:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:52:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:52:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:52:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:52:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:52:34 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:52:34 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:52:34 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:52:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:52:35 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:52:36 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:52:25.374625 End time: 2026-04-25 06:52:35.816977 2026-04-25 06:52:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:52:36 INFO tclean::::casa ########################################## 2026-04-25 06:52:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:52:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:52:36 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:52:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:52:36 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:52:36 2026****** 2026-04-25 06:52:36 INFO ImageFitter::fit+ 2026-04-25 06:52:36 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:52:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:52:36 INFO ImageFitter::fit+ --- region: 2026-04-25 06:52:36 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:52:36 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:52:36 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:52:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:52:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:52:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:52:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:52:36 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:52:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:52:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:52:36 INFO imstat::::casa ########################################## 2026-04-25 06:52:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:52:36 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:52:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:52:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:52:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:52:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:52:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:52:36 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:52:36 INFO imstat:::: Values --- 2026-04-25 06:52:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:52:36 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:52:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:52:36 INFO imstat:::: -- minimum value [min]: -7.77798e-05 Jy/beam 2026-04-25 06:52:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:52:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:52:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:52:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:52:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:52:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:52:36 INFO imstat:::: Statistics --- 2026-04-25 06:52:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:52:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:52:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:52:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:52:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86675e-05 Jy/beam 2026-04-25 06:52:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73645e-05 Jy/beam 2026-04-25 06:52:36 INFO imstat:::: -- IQR [quartile]: 3.56077e-05 Jy/beam 2026-04-25 06:52:36 INFO imstat:::: -- First quartile [q1]: -3.45073e-05 Jy/beam 2026-04-25 06:52:36 INFO imstat:::: -- Third quartile [q3]: 1.1004e-06 Jy/beam 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:52:36 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777975e-05 4.999996e+00 2026-04-25 06:52:36 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:52:35.872870 End time: 2026-04-25 06:52:35.896171 2026-04-25 06:52:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:52:36 INFO imstat::::casa ########################################## 2026-04-25 06:52:36 INFO phaseshift::::casa ########################################## 2026-04-25 06:52:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:52:36 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 0.110875644rad' ) 2026-04-25 06:52:36 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:52:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:52:36 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:52:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:52:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:52:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:52:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:52:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:52:36 INFO MSTransformManager::open Select data 2026-04-25 06:52:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:52:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:52:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 0.110875644rad' successfully parsed 2026-04-25 06:52:38 INFO phaseshift::::casa Shift phase center 2026-04-25 06:52:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:52:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:52:35.910398 End time: 2026-04-25 06:52:39.143572 2026-04-25 06:52:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:52:39 INFO phaseshift::::casa ########################################## 2026-04-25 06:52:39 INFO tclean::::casa ########################################## 2026-04-25 06:52:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:52:39 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:52:39 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:52:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:52:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:52:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:52:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:52:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:52:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:52:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:52:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:52:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:52:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:52:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:52:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:52:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.0231 2026-04-25 06:52:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:52:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:52:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:52:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:52:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:52:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:52:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:52:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:52:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:52:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:52:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:52:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:52:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:52:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:52:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:52:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:52:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:52:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:52:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:52:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:52:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:52:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:52:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:52:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:52:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:52:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:52:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:52:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:52:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:52:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:52:48 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:52:48 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'] 2026-04-25 06:52:49 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:52:39.174883 End time: 2026-04-25 06:52:49.430148 2026-04-25 06:52:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:52:49 INFO tclean::::casa ########################################## 2026-04-25 06:52:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:52:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:52:49 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:52:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:52:49 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:52:49 2026****** 2026-04-25 06:52:49 INFO ImageFitter::fit+ 2026-04-25 06:52:49 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:52:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:52:49 INFO ImageFitter::fit+ --- region: 2026-04-25 06:52:49 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:52:49 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:52:49 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:52:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:52:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:52:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:52:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:52:49 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:52:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000002 +/- 0.000777 arcsec 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- ra: 128.000014 +/- 0.000127 pixels 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- dec: 127.999998 +/- 0.000097 pixels 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:52:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:52:49 INFO imstat::::casa ########################################## 2026-04-25 06:52:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:52:49 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:52:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:52:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:52:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:52:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:52:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:52:50 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:52:50 INFO imstat:::: Values --- 2026-04-25 06:52:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:52:50 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:52:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:52:50 INFO imstat:::: -- minimum value [min]: -7.77816e-05 Jy/beam 2026-04-25 06:52:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:52:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:52:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:52:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-25 06:52:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:52:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:52:50 INFO imstat:::: Statistics --- 2026-04-25 06:52:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:52:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:52:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:52:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:52:50 INFO imstat:::: -- Median of the pixel values [median]: -1.8676e-05 Jy/beam 2026-04-25 06:52:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73584e-05 Jy/beam 2026-04-25 06:52:50 INFO imstat:::: -- IQR [quartile]: 3.56038e-05 Jy/beam 2026-04-25 06:52:50 INFO imstat:::: -- First quartile [q1]: -3.45104e-05 Jy/beam 2026-04-25 06:52:50 INFO imstat:::: -- Third quartile [q3]: 1.09331e-06 Jy/beam 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:52:50 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778164e-05 4.999996e+00 2026-04-25 06:52:50 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:52:49.494907 End time: 2026-04-25 06:52:49.516290 2026-04-25 06:52:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:52:50 INFO imstat::::casa ########################################## 2026-04-25 06:52:50 INFO phaseshift::::casa ########################################## 2026-04-25 06:52:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:52:50 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39d58m05.8512' ) 2026-04-25 06:52:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:52:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:52:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:52:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:52:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:52:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:52:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:52:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:52:50 INFO MSTransformManager::open Select data 2026-04-25 06:52:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:52:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:52:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39d58m05.8512' successfully parsed 2026-04-25 06:52:53 INFO phaseshift::::casa Shift phase center 2026-04-25 06:52:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:52:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:52:49.530135 End time: 2026-04-25 06:52:53.424181 2026-04-25 06:52:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:52:53 INFO phaseshift::::casa ########################################## 2026-04-25 06:52:53 INFO tclean::::casa ########################################## 2026-04-25 06:52:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:52:53 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 ) 2026-04-25 06:52:53 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:52:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:52:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:52:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:52:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:52:54 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:52:54 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:52:54 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:52:54 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:52:54 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:52:54 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:52:54 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:52:55 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:52:55 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021153 2026-04-25 06:52:55 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:52:55 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:52:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:52:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:52:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:52:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:52:57 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:52:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:52:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:52:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:52:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:52:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:52:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:52:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:52:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:52:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:52:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:52:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:52:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:53:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:53:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:53:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:53:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:53:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:53:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:53:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:53:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:53:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:53:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:53:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:53:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:53:02 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:53:03 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'] 2026-04-25 06:53:04 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:52:53.455001 End time: 2026-04-25 06:53:03.523641 2026-04-25 06:53:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:53:04 INFO tclean::::casa ########################################## 2026-04-25 06:53:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:53:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:53:04 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) 2026-04-25 06:53:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:53:04 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:53:04 2026****** 2026-04-25 06:53:04 INFO ImageFitter::fit+ 2026-04-25 06:53:04 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:53:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:53:04 INFO ImageFitter::fit+ --- region: 2026-04-25 06:53:04 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:53:04 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:53:04 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:53:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:53:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:53:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:53:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:53:04 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) 2026-04-25 06:53:04 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:53:04 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:53:04 INFO imstat::::casa ########################################## 2026-04-25 06:53:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:53:04 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 ) 2026-04-25 06:53:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:53:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:53:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:53:04 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:53:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:53:04 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) 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:53:04 INFO imstat:::: Values --- 2026-04-25 06:53:04 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:53:04 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:53:04 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:53:04 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-04-25 06:53:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:53:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:53:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:53:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:53:04 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:53:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:53:04 INFO imstat:::: Statistics --- 2026-04-25 06:53:04 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:53:04 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:53:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:53:04 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:53:04 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-04-25 06:53:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-04-25 06:53:04 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-04-25 06:53:04 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-04-25 06:53:04 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:53:04 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-04-25 06:53:04 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:53:03.583005 End time: 2026-04-25 06:53:03.606011 2026-04-25 06:53:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:53:04 INFO imstat::::casa ########################################## 2026-04-25 06:53:04 INFO phaseshift::::casa ########################################## 2026-04-25 06:53:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:53:04 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 02:39:52.3901' ) 2026-04-25 06:53:04 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:53:04 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:53:04 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:53:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:53:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:53:04 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:53:04 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:53:04 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:53:04 INFO MSTransformManager::open Select data 2026-04-25 06:53:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:53:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:53:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 02:39:52.3901' successfully parsed 2026-04-25 06:53:06 INFO phaseshift::::casa Shift phase center 2026-04-25 06:53:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:53:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:53:03.619360 End time: 2026-04-25 06:53:07.270726 2026-04-25 06:53:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:53:07 INFO phaseshift::::casa ########################################## 2026-04-25 06:53:07 INFO tclean::::casa ########################################## 2026-04-25 06:53:07 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:53:07 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:53:07 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:53:07 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:53:07 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:53:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:53:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:53:07 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:53:07 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:53:07 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:53:07 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:53:07 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:53:07 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:53:07 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:53:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:53:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021709 2026-04-25 06:53:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:53:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:53:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:53:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:53:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:53:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:53:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:53:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:53:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:53:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:53:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:53:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:53:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:53:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:53:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:53:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:53:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:53:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:53:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:53:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:53:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:53:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:53:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:53:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:53:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:53:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:53:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:53:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:53:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:53:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:53:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:53:17 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'] 2026-04-25 06:53:18 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:53:07.301181 End time: 2026-04-25 06:53:17.826182 2026-04-25 06:53:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:53:18 INFO tclean::::casa ########################################## 2026-04-25 06:53:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:53:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:53:18 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:53:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:53:18 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:53:18 2026****** 2026-04-25 06:53:18 INFO ImageFitter::fit+ 2026-04-25 06:53:18 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:53:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:53:18 INFO ImageFitter::fit+ --- region: 2026-04-25 06:53:18 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:53:18 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:53:18 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:53:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:53:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:53:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:53:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:53:18 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:53:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:53:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:53:18 INFO imstat::::casa ########################################## 2026-04-25 06:53:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:53:18 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:53:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:53:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:53:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:53:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:53:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:53:18 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-25 06:53:18 INFO imstat:::: Values --- 2026-04-25 06:53:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:53:18 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:53:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:53:18 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-04-25 06:53:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:53:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:53:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:53:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:53:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:53:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:53:18 INFO imstat:::: Statistics --- 2026-04-25 06:53:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:53:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:53:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:53:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:53:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-04-25 06:53:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-04-25 06:53:18 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-04-25 06:53:18 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-04-25 06:53:18 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:53:18 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.782251e-05 4.999996e+00 2026-04-25 06:53:18 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:53:17.882250 End time: 2026-04-25 06:53:17.902792 2026-04-25 06:53:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:53:18 INFO imstat::::casa ########################################## 2026-04-25 06:53:18 INFO phaseshift::::casa ########################################## 2026-04-25 06:53:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:53:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39.968292000deg' ) 2026-04-25 06:53:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:53:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:53:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:53:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:53:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:53:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:53:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:53:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:53:18 INFO MSTransformManager::open Select data 2026-04-25 06:53:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:53:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:53:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39.968292000deg' successfully parsed 2026-04-25 06:53:21 INFO phaseshift::::casa Shift phase center 2026-04-25 06:53:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:53:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:53:17.915826 End time: 2026-04-25 06:53:21.509363 2026-04-25 06:53:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:53:22 INFO phaseshift::::casa ########################################## 2026-04-25 06:53:22 INFO tclean::::casa ########################################## 2026-04-25 06:53:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:53:22 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:53:22 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:53:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:53:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:53:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:53:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:53:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:53:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:53:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:53:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:53:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:53:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:53:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:53:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:53:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022593 2026-04-25 06:53:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:53:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:53:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:53:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:53:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:53:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:53:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:53:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:53:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:53:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:53:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:53:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:53:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:53:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:53:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:53:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:53:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:53:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:53:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:53:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:53:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:53:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:53:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:53:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:53:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:53:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:53:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:53:30 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:53:30 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:53:30 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:53:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:53:31 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'] 2026-04-25 06:53:32 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:53:21.540873 End time: 2026-04-25 06:53:32.055529 2026-04-25 06:53:32 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:53:32 INFO tclean::::casa ########################################## 2026-04-25 06:53:32 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:53:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:53:32 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:53:32 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:53:32 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:53:32 2026****** 2026-04-25 06:53:32 INFO ImageFitter::fit+ 2026-04-25 06:53:32 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:53:32 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:53:32 INFO ImageFitter::fit+ --- region: 2026-04-25 06:53:32 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:53:32 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:53:32 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:53:32 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:53:32 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:53:32 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:53:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:53:32 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:53:32 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:53:32 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:53:32 INFO imstat::::casa ########################################## 2026-04-25 06:53:32 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:53:32 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:53:32 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:53:32 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:53:32 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:53:32 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:53:32 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:53:32 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:53:32 INFO imstat:::: Values --- 2026-04-25 06:53:32 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:53:32 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:53:32 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:53:32 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-04-25 06:53:32 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:53:32 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:53:32 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:53:32 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:53:32 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:53:32 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:53:32 INFO imstat:::: Statistics --- 2026-04-25 06:53:32 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:53:32 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:53:32 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:53:32 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:53:32 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-04-25 06:53:32 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-04-25 06:53:32 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-04-25 06:53:32 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-04-25 06:53:32 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:53:32 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-04-25 06:53:32 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:53:32.121455 End time: 2026-04-25 06:53:32.143208 2026-04-25 06:53:32 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:53:32 INFO imstat::::casa ########################################## 2026-04-25 06:53:32 INFO phaseshift::::casa ########################################## 2026-04-25 06:53:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:53:32 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 0.697578292rad' ) 2026-04-25 06:53:32 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:53:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:53:32 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:53:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:53:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:53:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:53:32 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:53:32 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:53:32 INFO MSTransformManager::open Select data 2026-04-25 06:53:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:53:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:53:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 0.697578292rad' successfully parsed 2026-04-25 06:53:35 INFO phaseshift::::casa Shift phase center 2026-04-25 06:53:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:53:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:53:32.157581 End time: 2026-04-25 06:53:35.757840 2026-04-25 06:53:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:53:36 INFO phaseshift::::casa ########################################## 2026-04-25 06:53:36 INFO tclean::::casa ########################################## 2026-04-25 06:53:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:53:36 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:53:36 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:53:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:53:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:53:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:53:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:53:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:53:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:53:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:53:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:53:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:53:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:53:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:53:37 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:53:37 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021456 2026-04-25 06:53:37 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:53:37 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:53:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:53:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:53:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:53:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:53:39 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:53:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:53:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:53:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:53:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:53:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:53:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:53:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:53:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:53:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:53:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:53:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:53:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:53:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:53:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:53:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:53:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:53:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:53:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:53:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:53:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:53:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:53:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:53:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:53:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:53:46 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'] 2026-04-25 06:53:47 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:53:35.791619 End time: 2026-04-25 06:53:47.085807 2026-04-25 06:53:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:53:47 INFO tclean::::casa ########################################## 2026-04-25 06:53:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:53:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:53:47 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:53:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:53:47 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:53:47 2026****** 2026-04-25 06:53:47 INFO ImageFitter::fit+ 2026-04-25 06:53:47 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:53:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:53:47 INFO ImageFitter::fit+ --- region: 2026-04-25 06:53:47 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:53:47 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:53:47 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:53:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:53:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:53:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:53:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:53:47 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) 2026-04-25 06:53:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:53:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:53:47 INFO imstat::::casa ########################################## 2026-04-25 06:53:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:53:47 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:53:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:53:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:53:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:53:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:53:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:53:47 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:53:47 INFO imstat:::: Values --- 2026-04-25 06:53:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:53:47 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:53:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:53:47 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-04-25 06:53:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:53:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:53:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:53:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:53:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:53:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:53:47 INFO imstat:::: Statistics --- 2026-04-25 06:53:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:53:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:53:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:53:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:53:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-04-25 06:53:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-04-25 06:53:47 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-04-25 06:53:47 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-04-25 06:53:47 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:53:47 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778897e-05 4.999996e+00 2026-04-25 06:53:47 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:53:47.140830 End time: 2026-04-25 06:53:47.174885 2026-04-25 06:53:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:53:47 INFO imstat::::casa ########################################## 2026-04-25 06:53:47 INFO phaseshift::::casa ########################################## 2026-04-25 06:53:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:53:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39d58m05.8512' ) 2026-04-25 06:53:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:53:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:53:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:53:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:53:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:53:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:53:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:53:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:53:47 INFO MSTransformManager::open Select data 2026-04-25 06:53:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:53:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:53:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39d58m05.8512' successfully parsed 2026-04-25 06:53:50 INFO phaseshift::::casa Shift phase center 2026-04-25 06:53:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:53:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:53:47.188431 End time: 2026-04-25 06:53:50.904272 2026-04-25 06:53:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:53:51 INFO phaseshift::::casa ########################################## 2026-04-25 06:53:51 INFO tclean::::casa ########################################## 2026-04-25 06:53:51 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:53:51 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:53:51 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:53:51 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:53:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:53:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:53:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:53:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:53:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:53:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:53:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:53:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:53:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:53:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:53:52 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:53:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022227 2026-04-25 06:53:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:53:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:53:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:53:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:53:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:53:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:53:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:53:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:53:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:53:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:53:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:53:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:53:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:53:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:53:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:53:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:53:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:53:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:53:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:53:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:53:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:53:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:53:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:53:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:53:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:53:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:53:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:54:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:54:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:54:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:54:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:54:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:54:01 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:54:02 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:53:50.933391 End time: 2026-04-25 06:54:01.922985 2026-04-25 06:54:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:54:02 INFO tclean::::casa ########################################## 2026-04-25 06:54:02 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:54:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:54:02 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:54:02 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:54:02 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:54:02 2026****** 2026-04-25 06:54:02 INFO ImageFitter::fit+ 2026-04-25 06:54:02 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:54:02 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:54:02 INFO ImageFitter::fit+ --- region: 2026-04-25 06:54:02 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:54:02 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:54:02 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:54:02 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:54:02 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:54:02 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:54:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:54:02 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:54:02 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:54:02 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:54:02 INFO imstat::::casa ########################################## 2026-04-25 06:54:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:54:02 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:54:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:54:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:54:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:54:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:54:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:54:02 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:54:02 INFO imstat:::: Values --- 2026-04-25 06:54:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:54:02 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:54:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:54:02 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-04-25 06:54:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:54:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:54:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:54:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-25 06:54:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:54:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:54:02 INFO imstat:::: Statistics --- 2026-04-25 06:54:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:54:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:54:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:54:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:54:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-04-25 06:54:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-04-25 06:54:02 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-04-25 06:54:02 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-04-25 06:54:02 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:54:02 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777732e-05 4.999996e+00 2026-04-25 06:54:02 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:54:01.979832 End time: 2026-04-25 06:54:02.001745 2026-04-25 06:54:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:54:02 INFO imstat::::casa ########################################## 2026-04-25 06:54:02 INFO phaseshift::::casa ########################################## 2026-04-25 06:54:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:54:02 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 02:39:52.3901' ) 2026-04-25 06:54:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:54:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:54:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:54:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:54:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:54:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:54:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:54:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:54:02 INFO MSTransformManager::open Select data 2026-04-25 06:54:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:54:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:54:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 02:39:52.3901' successfully parsed 2026-04-25 06:54:05 INFO phaseshift::::casa Shift phase center 2026-04-25 06:54:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:54:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:54:02.015448 End time: 2026-04-25 06:54:05.652499 2026-04-25 06:54:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:54:06 INFO phaseshift::::casa ########################################## 2026-04-25 06:54:06 INFO tclean::::casa ########################################## 2026-04-25 06:54:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:54:06 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:54:06 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:54:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:54:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:54:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:54:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:54:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:54:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:54:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:54:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:54:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:54:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:54:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:54:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:54:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023996 2026-04-25 06:54:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:54:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:54:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:54:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:54:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:54:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:54:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:54:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:54:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:54:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:54:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:54:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:54:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:54:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:54:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:54:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:54:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:54:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:54:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:54:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:54:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:54:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:54:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:54:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:54:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:54:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:54:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:54:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:54:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:54:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:54:15 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:54:15 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'] 2026-04-25 06:54:17 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:54:05.682437 End time: 2026-04-25 06:54:16.987025 2026-04-25 06:54:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:54:17 INFO tclean::::casa ########################################## 2026-04-25 06:54:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:54:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:54:17 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) 2026-04-25 06:54:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:54:17 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:54:17 2026****** 2026-04-25 06:54:17 INFO ImageFitter::fit+ 2026-04-25 06:54:17 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:54:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:54:17 INFO ImageFitter::fit+ --- region: 2026-04-25 06:54:17 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:54:17 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:54:17 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:54:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:54:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:54:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:54:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:54:17 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) 2026-04-25 06:54:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- ra: 128.000008 +/- 0.000127 pixels 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:54:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:54:17 INFO imstat::::casa ########################################## 2026-04-25 06:54:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:54:17 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 ) 2026-04-25 06:54:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:54:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:54:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:54:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:54:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:54:17 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-25 06:54:17 INFO imstat:::: Values --- 2026-04-25 06:54:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:54:17 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:54:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:54:17 INFO imstat:::: -- minimum value [min]: -7.78143e-05 Jy/beam 2026-04-25 06:54:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:54:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:54:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:54:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:54:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:54:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:54:17 INFO imstat:::: Statistics --- 2026-04-25 06:54:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:54:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:54:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:54:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:54:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86838e-05 Jy/beam 2026-04-25 06:54:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73769e-05 Jy/beam 2026-04-25 06:54:17 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-04-25 06:54:17 INFO imstat:::: -- First quartile [q1]: -3.45216e-05 Jy/beam 2026-04-25 06:54:17 INFO imstat:::: -- Third quartile [q3]: 1.1124e-06 Jy/beam 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:54:17 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.781426e-05 4.999996e+00 2026-04-25 06:54:17 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:54:17.046091 End time: 2026-04-25 06:54:17.077639 2026-04-25 06:54:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:54:17 INFO imstat::::casa ########################################## 2026-04-25 06:54:17 INFO phaseshift::::casa ########################################## 2026-04-25 06:54:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:54:17 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39.968292000deg' ) 2026-04-25 06:54:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:54:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:54:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:54:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:54:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:54:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:54:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:54:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:54:17 INFO MSTransformManager::open Select data 2026-04-25 06:54:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:54:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:54:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39.968292000deg' successfully parsed 2026-04-25 06:54:20 INFO phaseshift::::casa Shift phase center 2026-04-25 06:54:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:54:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:54:17.092169 End time: 2026-04-25 06:54:20.458511 2026-04-25 06:54:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:54:20 INFO phaseshift::::casa ########################################## 2026-04-25 06:54:20 INFO tclean::::casa ########################################## 2026-04-25 06:54:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:54:20 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:54:20 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:54:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:54:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:54:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:54:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:54:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:54:21 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:54:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:54:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:54:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:54:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:54:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:54:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:54:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023114 2026-04-25 06:54:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:54:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:54:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:54:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:54:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:54:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:54:24 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:54:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:54:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:54:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:54:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:54:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:54:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:54:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:54:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:54:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:54:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:54:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:54:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:54:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:54:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:54:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:54:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:54:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:54:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:54:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:54:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:54:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:54:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:54:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:54:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:54:30 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'] 2026-04-25 06:54:31 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:54:20.487896 End time: 2026-04-25 06:54:31.254432 2026-04-25 06:54:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:54:31 INFO tclean::::casa ########################################## 2026-04-25 06:54:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:54:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:54:31 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:54:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:54:31 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:54:31 2026****** 2026-04-25 06:54:31 INFO ImageFitter::fit+ 2026-04-25 06:54:31 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:54:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:54:31 INFO ImageFitter::fit+ --- region: 2026-04-25 06:54:31 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:54:31 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:54:31 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:54:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:54:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:54:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:54:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:54:31 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:54:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:54:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:54:31 INFO imstat::::casa ########################################## 2026-04-25 06:54:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:54:31 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:54:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:54:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:54:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:54:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:54:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:54:31 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:54:31 INFO imstat:::: Values --- 2026-04-25 06:54:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:54:31 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:54:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:54:31 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-04-25 06:54:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:54:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-25 06:54:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:54:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-25 06:54:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:54:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:54:31 INFO imstat:::: Statistics --- 2026-04-25 06:54:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:54:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:54:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:54:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:54:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-04-25 06:54:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-04-25 06:54:31 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-04-25 06:54:31 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-04-25 06:54:31 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:54:31 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777732e-05 4.999996e+00 2026-04-25 06:54:31 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:54:31.310642 End time: 2026-04-25 06:54:31.331276 2026-04-25 06:54:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:54:31 INFO imstat::::casa ########################################## 2026-04-25 06:54:31 INFO phaseshift::::casa ########################################## 2026-04-25 06:54:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:54:31 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 0.697578292rad' ) 2026-04-25 06:54:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:54:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:54:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:54:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:54:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:54:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:54:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:54:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:54:31 INFO MSTransformManager::open Select data 2026-04-25 06:54:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:54:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:54:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 0.697578292rad' successfully parsed 2026-04-25 06:54:34 INFO phaseshift::::casa Shift phase center 2026-04-25 06:54:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:54:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:54:31.344196 End time: 2026-04-25 06:54:34.756019 2026-04-25 06:54:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:54:35 INFO phaseshift::::casa ########################################## 2026-04-25 06:54:35 INFO tclean::::casa ########################################## 2026-04-25 06:54:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:54:35 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:54:35 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:54:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:54:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:54:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:54:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:54:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:54:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:54:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:54:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:54:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:54:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:54:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:54:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:54:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021596 2026-04-25 06:54:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:54:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:54:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:54:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:54:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:54:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:54:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:54:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:54:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:54:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:54:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:54:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:54:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:54:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:54:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:54:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:54:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:54:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:54:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:54:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:54:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:54:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:54:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:54:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:54:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:54:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:54:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:54:44 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:54:44 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:54:44 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:54:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:54:45 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'] 2026-04-25 06:54:46 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:54:34.786667 End time: 2026-04-25 06:54:46.144204 2026-04-25 06:54:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:54:46 INFO tclean::::casa ########################################## 2026-04-25 06:54:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:54:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:54:46 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:54:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:54:46 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:54:46 2026****** 2026-04-25 06:54:46 INFO ImageFitter::fit+ 2026-04-25 06:54:46 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:54:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:54:46 INFO ImageFitter::fit+ --- region: 2026-04-25 06:54:46 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:54:46 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:54:46 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:54:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:54:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:54:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:54:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:54:46 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:54:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:54:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:54:46 INFO imstat::::casa ########################################## 2026-04-25 06:54:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:54:46 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:54:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:54:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:54:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:54:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:54:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:54:46 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:54:46 INFO imstat:::: Values --- 2026-04-25 06:54:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:54:46 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:54:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:54:46 INFO imstat:::: -- minimum value [min]: -7.7781e-05 Jy/beam 2026-04-25 06:54:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:54:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:54:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:54:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:54:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:54:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:54:46 INFO imstat:::: Statistics --- 2026-04-25 06:54:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:54:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:54:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:54:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:54:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-04-25 06:54:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73593e-05 Jy/beam 2026-04-25 06:54:46 INFO imstat:::: -- IQR [quartile]: 3.56161e-05 Jy/beam 2026-04-25 06:54:46 INFO imstat:::: -- First quartile [q1]: -3.45125e-05 Jy/beam 2026-04-25 06:54:46 INFO imstat:::: -- Third quartile [q3]: 1.10364e-06 Jy/beam 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:54:46 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778104e-05 4.999996e+00 2026-04-25 06:54:46 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:54:46.201325 End time: 2026-04-25 06:54:46.222776 2026-04-25 06:54:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:54:46 INFO imstat::::casa ########################################## 2026-04-25 06:54:46 INFO phaseshift::::casa ########################################## 2026-04-25 06:54:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:54:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39d58m05.8512' ) 2026-04-25 06:54:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:54:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:54:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:54:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:54:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:54:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:54:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:54:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:54:46 INFO MSTransformManager::open Select data 2026-04-25 06:54:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:54:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:54:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39d58m05.8512' successfully parsed 2026-04-25 06:54:49 INFO phaseshift::::casa Shift phase center 2026-04-25 06:54:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:54:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:54:46.237243 End time: 2026-04-25 06:54:49.765435 2026-04-25 06:54:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:54:50 INFO phaseshift::::casa ########################################## 2026-04-25 06:54:50 INFO tclean::::casa ########################################## 2026-04-25 06:54:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:54:50 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:54:50 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:54:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:54:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:54:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:54:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:54:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:54:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:54:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:54:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:54:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:54:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:54:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:54:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:54:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02294 2026-04-25 06:54:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:54:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:54:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:54:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:54:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:54:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:54:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:54:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:54:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:54:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:54:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:54:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:54:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:54:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:54:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:54:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:54:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:54:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:54:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:54:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:54:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:54:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:54:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:54:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:54:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:54:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:54:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:54:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:54:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:54:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:54:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:54:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:55:00 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'] 2026-04-25 06:55:01 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:54:49.794226 End time: 2026-04-25 06:55:00.790860 2026-04-25 06:55:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:55:01 INFO tclean::::casa ########################################## 2026-04-25 06:55:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:55:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:01 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:55:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:55:01 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:55:01 2026****** 2026-04-25 06:55:01 INFO ImageFitter::fit+ 2026-04-25 06:55:01 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:55:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:55:01 INFO ImageFitter::fit+ --- region: 2026-04-25 06:55:01 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:55:01 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:55:01 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:55:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:55:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:55:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:55:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:01 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:55:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:55:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:55:01 INFO imstat::::casa ########################################## 2026-04-25 06:55:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:55:01 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:55:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:55:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:55:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:55:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:55:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:01 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:55:01 INFO imstat:::: Values --- 2026-04-25 06:55:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:55:01 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:55:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:55:01 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-04-25 06:55:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:55:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:55:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:55:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:55:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:55:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:55:01 INFO imstat:::: Statistics --- 2026-04-25 06:55:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:55:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:55:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:55:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:55:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-04-25 06:55:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-04-25 06:55:01 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-04-25 06:55:01 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-04-25 06:55:01 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:55:01 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-04-25 06:55:01 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:55:00.852446 End time: 2026-04-25 06:55:00.872748 2026-04-25 06:55:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:55:01 INFO imstat::::casa ########################################## 2026-04-25 06:55:01 INFO phaseshift::::casa ########################################## 2026-04-25 06:55:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:55:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 02:39:52.3901' ) 2026-04-25 06:55:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:55:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:55:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:55:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:55:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:55:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:55:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:55:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:55:01 INFO MSTransformManager::open Select data 2026-04-25 06:55:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:55:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:55:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 02:39:52.3901' successfully parsed 2026-04-25 06:55:04 INFO phaseshift::::casa Shift phase center 2026-04-25 06:55:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:55:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:55:00.885779 End time: 2026-04-25 06:55:04.604699 2026-04-25 06:55:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:55:05 INFO phaseshift::::casa ########################################## 2026-04-25 06:55:05 INFO tclean::::casa ########################################## 2026-04-25 06:55:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:55:05 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:55:05 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:55:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:55:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:55:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:55:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:55:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:55:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:55:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:55:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:55:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:55:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:55:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:55:06 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:55:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02261 2026-04-25 06:55:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:55:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:55:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:55:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:55:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:55:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:55:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:55:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:55:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:55:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:55:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:55:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:55:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:55:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:55:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:55:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:55:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:55:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:55:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:55:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:55:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:55:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:55:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:55:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:55:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:55:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:55:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:55:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:55:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:55:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:55:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:55:13 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'] 2026-04-25 06:55:15 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:55:04.634700 End time: 2026-04-25 06:55:14.613775 2026-04-25 06:55:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:55:15 INFO tclean::::casa ########################################## 2026-04-25 06:55:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:55:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:15 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) 2026-04-25 06:55:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:55:15 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:55:15 2026****** 2026-04-25 06:55:15 INFO ImageFitter::fit+ 2026-04-25 06:55:15 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:55:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:55:15 INFO ImageFitter::fit+ --- region: 2026-04-25 06:55:15 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:55:15 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:55:15 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:55:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:55:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:55:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:55:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:15 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) 2026-04-25 06:55:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:55:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:55:15 INFO imstat::::casa ########################################## 2026-04-25 06:55:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:55:15 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 ) 2026-04-25 06:55:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:55:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:55:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:55:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:55:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:15 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-25 06:55:15 INFO imstat:::: Values --- 2026-04-25 06:55:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:55:15 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:55:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:55:15 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-04-25 06:55:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:55:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:55:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:55:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:55:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:55:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:55:15 INFO imstat:::: Statistics --- 2026-04-25 06:55:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:55:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:55:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:55:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:55:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-04-25 06:55:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-04-25 06:55:15 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-04-25 06:55:15 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-04-25 06:55:15 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:55:15 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.782251e-05 4.999996e+00 2026-04-25 06:55:15 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:55:14.671647 End time: 2026-04-25 06:55:14.705500 2026-04-25 06:55:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:55:15 INFO imstat::::casa ########################################## 2026-04-25 06:55:15 INFO phaseshift::::casa ########################################## 2026-04-25 06:55:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:55:15 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39.968292000deg' ) 2026-04-25 06:55:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:55:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:55:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:55:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:55:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:55:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:55:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:55:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:55:15 INFO MSTransformManager::open Select data 2026-04-25 06:55:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:55:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:55:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39.968292000deg' successfully parsed 2026-04-25 06:55:17 INFO phaseshift::::casa Shift phase center 2026-04-25 06:55:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:55:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:55:14.718930 End time: 2026-04-25 06:55:18.250898 2026-04-25 06:55:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:55:18 INFO phaseshift::::casa ########################################## 2026-04-25 06:55:18 INFO tclean::::casa ########################################## 2026-04-25 06:55:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:55:18 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:55:18 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:55:18 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:55:18 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:55:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:55:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:55:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:55:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:55:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:55:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:55:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:55:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:55:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:55:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:55:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023012 2026-04-25 06:55:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:55:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:55:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:55:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:55:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:55:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:55:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:55:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:55:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:55:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:55:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:55:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:55:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:55:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:55:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:55:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:55:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:55:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:55:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:55:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:55:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:55:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:55:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:55:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:55:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:55:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:55:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:55:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:55:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:55:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:55:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:55:28 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'] 2026-04-25 06:55:29 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:55:18.281785 End time: 2026-04-25 06:55:28.627249 2026-04-25 06:55:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:55:29 INFO tclean::::casa ########################################## 2026-04-25 06:55:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:55:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:29 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:55:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:55:29 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:55:29 2026****** 2026-04-25 06:55:29 INFO ImageFitter::fit+ 2026-04-25 06:55:29 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:55:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:55:29 INFO ImageFitter::fit+ --- region: 2026-04-25 06:55:29 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:55:29 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:55:29 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:55:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:55:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:55:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:55:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:29 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) 2026-04-25 06:55:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:55:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:55:29 INFO imstat::::casa ########################################## 2026-04-25 06:55:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:55:29 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:55:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:55:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:55:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:55:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:55:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:29 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:55:29 INFO imstat:::: Values --- 2026-04-25 06:55:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:55:29 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:55:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:55:29 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-04-25 06:55:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:55:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:55:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:55:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:55:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:55:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:55:29 INFO imstat:::: Statistics --- 2026-04-25 06:55:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:55:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:55:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:55:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:55:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-04-25 06:55:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-04-25 06:55:29 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-04-25 06:55:29 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-04-25 06:55:29 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:55:29 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-04-25 06:55:29 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:55:28.679499 End time: 2026-04-25 06:55:28.698824 2026-04-25 06:55:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:55:29 INFO imstat::::casa ########################################## 2026-04-25 06:55:29 INFO phaseshift::::casa ########################################## 2026-04-25 06:55:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:55:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 0.697578292rad' ) 2026-04-25 06:55:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:55:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:55:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:55:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:55:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:55:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:55:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:55:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:55:29 INFO MSTransformManager::open Select data 2026-04-25 06:55:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:55:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:55:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 0.697578292rad' successfully parsed 2026-04-25 06:55:32 INFO phaseshift::::casa Shift phase center 2026-04-25 06:55:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:55:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:55:28.711541 End time: 2026-04-25 06:55:32.474191 2026-04-25 06:55:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:55:32 INFO phaseshift::::casa ########################################## 2026-04-25 06:55:33 INFO tclean::::casa ########################################## 2026-04-25 06:55:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:55:33 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:55:33 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:55:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:55:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:55:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:55:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:55:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:55:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:55:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:55:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:55:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:55:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:55:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:55:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:55:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023579 2026-04-25 06:55:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:55:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:55:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:55:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:55:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:55:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:55:35 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:55:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:55:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:55:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:55:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:55:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:55:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:55:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:55:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:55:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:55:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:55:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:55:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:55:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:55:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:55:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:55:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:55:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:55:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:55:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:55:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:55:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:55:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:55:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:55:41 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:55:41 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'] 2026-04-25 06:55:43 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:55:32.505076 End time: 2026-04-25 06:55:42.626815 2026-04-25 06:55:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:55:43 INFO tclean::::casa ########################################## 2026-04-25 06:55:43 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:55:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:43 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:55:43 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:55:43 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:55:43 2026****** 2026-04-25 06:55:43 INFO ImageFitter::fit+ 2026-04-25 06:55:43 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:55:43 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:55:43 INFO ImageFitter::fit+ --- region: 2026-04-25 06:55:43 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:55:43 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:55:43 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:55:43 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:55:43 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:55:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:55:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:43 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:55:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:55:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:55:43 INFO imstat::::casa ########################################## 2026-04-25 06:55:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:55:43 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:55:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:55:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:55:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:55:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:55:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:43 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:55:43 INFO imstat:::: Values --- 2026-04-25 06:55:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:55:43 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:55:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:55:43 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-04-25 06:55:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:55:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:55:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:55:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:55:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:55:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:55:43 INFO imstat:::: Statistics --- 2026-04-25 06:55:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:55:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:55:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:55:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:55:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-04-25 06:55:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-04-25 06:55:43 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-04-25 06:55:43 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-04-25 06:55:43 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:55:43 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778897e-05 4.999996e+00 2026-04-25 06:55:43 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:55:42.682627 End time: 2026-04-25 06:55:42.707434 2026-04-25 06:55:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:55:43 INFO imstat::::casa ########################################## 2026-04-25 06:55:43 INFO phaseshift::::casa ########################################## 2026-04-25 06:55:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:55:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39d58m05.8512' ) 2026-04-25 06:55:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:55:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:55:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:55:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:55:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:55:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:55:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:55:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:55:43 INFO MSTransformManager::open Select data 2026-04-25 06:55:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:55:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:55:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39d58m05.8512' successfully parsed 2026-04-25 06:55:45 INFO phaseshift::::casa Shift phase center 2026-04-25 06:55:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:55:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:55:42.720074 End time: 2026-04-25 06:55:46.245592 2026-04-25 06:55:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:55:46 INFO phaseshift::::casa ########################################## 2026-04-25 06:55:46 INFO tclean::::casa ########################################## 2026-04-25 06:55:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:55:46 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 ) 2026-04-25 06:55:46 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:55:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:55:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:55:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:55:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:55:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:55:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:55:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:55:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:55:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:55:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:55:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:55:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:55:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02231 2026-04-25 06:55:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:55:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:55:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:55:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:55:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:55:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:55:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:55:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:55:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:55:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:55:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:55:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:55:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:55:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:55:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:55:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:55:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:55:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:55:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:55:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:55:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:55:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:55:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:55:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:55:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:55:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:55:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:55:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:55:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:55:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:55:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:55:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:55:56 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'] 2026-04-25 06:55:57 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:55:46.276392 End time: 2026-04-25 06:55:57.143807 2026-04-25 06:55:57 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:55:57 INFO tclean::::casa ########################################## 2026-04-25 06:55:57 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:55:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:57 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) 2026-04-25 06:55:57 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:55:57 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:55:57 2026****** 2026-04-25 06:55:57 INFO ImageFitter::fit+ 2026-04-25 06:55:57 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:55:57 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:55:57 INFO ImageFitter::fit+ --- region: 2026-04-25 06:55:57 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:55:57 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:55:57 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:55:57 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:55:57 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:55:57 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:55:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:57 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) 2026-04-25 06:55:57 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:55:57 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:55:57 INFO imstat::::casa ########################################## 2026-04-25 06:55:57 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:55:57 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 ) 2026-04-25 06:55:57 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:55:57 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:55:57 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:55:57 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:55:57 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:55:57 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) 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:55:57 INFO imstat:::: Values --- 2026-04-25 06:55:57 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:55:57 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:55:57 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:55:57 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-04-25 06:55:57 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:55:57 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:55:57 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:55:57 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:55:57 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:55:57 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:55:57 INFO imstat:::: Statistics --- 2026-04-25 06:55:57 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:55:57 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:55:57 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:55:57 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:55:57 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-04-25 06:55:57 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-04-25 06:55:57 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-04-25 06:55:57 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-04-25 06:55:57 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:55:57 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778534e-05 4.999996e+00 2026-04-25 06:55:57 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:55:57.196992 End time: 2026-04-25 06:55:57.227346 2026-04-25 06:55:57 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:55:57 INFO imstat::::casa ########################################## 2026-04-25 06:55:57 INFO phaseshift::::casa ########################################## 2026-04-25 06:55:57 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:55:57 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 02:39:52.3901' ) 2026-04-25 06:55:57 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:55:57 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:55:57 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:55:57 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:55:57 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:55:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:55:57 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:55:57 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:55:57 INFO MSTransformManager::open Select data 2026-04-25 06:55:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:56:00 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-25 06:56:00 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 02:39:52.3901' successfully parsed 2026-04-25 06:56:00 INFO phaseshift::::casa Shift phase center 2026-04-25 06:56:00 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:56:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:55:57.239821 End time: 2026-04-25 06:56:00.549167 2026-04-25 06:56:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:56:01 INFO phaseshift::::casa ########################################## 2026-04-25 06:56:01 INFO tclean::::casa ########################################## 2026-04-25 06:56:01 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:56:01 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:56:01 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:56:01 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:56:01 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:56:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:56:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:56:01 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:56:01 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:56:01 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:56:01 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:56:01 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:56:01 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:56:01 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:56:02 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:56:02 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021782 2026-04-25 06:56:02 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:56:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:56:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:56:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:56:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:56:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:56:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:56:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:56:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:56:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:56:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:56:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:56:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:56:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:56:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:56:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:56:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:56:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:56:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:56:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:56:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:56:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:56:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:56:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:56:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:56:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:56:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-25 06:56:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:56:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:56:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:56:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:56:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:56:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:56:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:56:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:56:10 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:56:12 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:56:00.578252 End time: 2026-04-25 06:56:11.574549 2026-04-25 06:56:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:56:12 INFO tclean::::casa ########################################## 2026-04-25 06:56:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:56:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:56:12 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:56:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:56:12 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:56:12 2026****** 2026-04-25 06:56:12 INFO ImageFitter::fit+ 2026-04-25 06:56:12 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:56:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:56:12 INFO ImageFitter::fit+ --- region: 2026-04-25 06:56:12 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:56:12 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:56:12 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:56:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:56:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:56:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:56:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:56:12 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:56:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116885 Jy 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126501 Jy 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:56:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:56:12 INFO imstat::::casa ########################################## 2026-04-25 06:56:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:56:12 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:56:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:56:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:56:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:56:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:56:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:56:12 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-25 06:56:12 INFO imstat:::: Values --- 2026-04-25 06:56:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:56:12 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:56:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:56:12 INFO imstat:::: -- minimum value [min]: -7.78268e-05 Jy/beam 2026-04-25 06:56:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:56:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:56:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:56:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:56:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:56:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:56:12 INFO imstat:::: Statistics --- 2026-04-25 06:56:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:56:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:56:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:56:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:56:12 INFO imstat:::: -- Median of the pixel values [median]: -1.8675e-05 Jy/beam 2026-04-25 06:56:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73782e-05 Jy/beam 2026-04-25 06:56:12 INFO imstat:::: -- IQR [quartile]: 3.56598e-05 Jy/beam 2026-04-25 06:56:12 INFO imstat:::: -- First quartile [q1]: -3.45364e-05 Jy/beam 2026-04-25 06:56:12 INFO imstat:::: -- Third quartile [q3]: 1.12335e-06 Jy/beam 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:56:12 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.782676e-05 4.999996e+00 2026-04-25 06:56:12 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:56:11.631761 End time: 2026-04-25 06:56:11.652903 2026-04-25 06:56:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:56:12 INFO imstat::::casa ########################################## 2026-04-25 06:56:12 INFO phaseshift::::casa ########################################## 2026-04-25 06:56:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:56:12 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39.968292000deg' ) 2026-04-25 06:56:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:56:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:56:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:56:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:56:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:56:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:56:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:56:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:56:12 INFO MSTransformManager::open Select data 2026-04-25 06:56:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:56:15 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:56:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39.968292000deg' successfully parsed 2026-04-25 06:56:15 INFO phaseshift::::casa Shift phase center 2026-04-25 06:56:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:56:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:56:11.666864 End time: 2026-04-25 06:56:15.425804 2026-04-25 06:56:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:56:15 INFO phaseshift::::casa ########################################## 2026-04-25 06:56:15 INFO tclean::::casa ########################################## 2026-04-25 06:56:15 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:56:15 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 ) 2026-04-25 06:56:15 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:56:15 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:56:15 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:56:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:56:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:56:16 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:56:16 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:56:16 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:56:16 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:56:16 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:56:16 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:56:16 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:56:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:56:17 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021852 2026-04-25 06:56:17 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:56:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:56:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:56:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:56:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:56:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:56:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:56:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:56:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:56:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:56:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:56:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:56:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:56:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:56:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:56:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:56:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:56:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:56:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:56:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:56:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:56:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:56:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:56:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:56:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:56:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:56:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:56:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:56:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:56:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:56:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:56:24 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:56:24 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:56:24 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:56:25 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:56:25 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'] 2026-04-25 06:56:26 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:56:15.454792 End time: 2026-04-25 06:56:26.150032 2026-04-25 06:56:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:56:26 INFO tclean::::casa ########################################## 2026-04-25 06:56:26 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:56:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:56:26 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) 2026-04-25 06:56:26 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:56:26 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:56:26 2026****** 2026-04-25 06:56:26 INFO ImageFitter::fit+ 2026-04-25 06:56:26 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:56:26 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:56:26 INFO ImageFitter::fit+ --- region: 2026-04-25 06:56:26 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:56:26 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:56:26 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:56:26 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:56:26 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:56:26 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:56:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:56:26 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) 2026-04-25 06:56:26 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:56:26 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:56:26 INFO imstat::::casa ########################################## 2026-04-25 06:56:26 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:56:26 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 ) 2026-04-25 06:56:26 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:56:26 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:56:26 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:56:26 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:56:26 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:56:26 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) 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:56:26 INFO imstat:::: Values --- 2026-04-25 06:56:26 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:56:26 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:56:26 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:56:26 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-04-25 06:56:26 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:56:26 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:56:26 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:56:26 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:56:26 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:56:26 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:56:26 INFO imstat:::: Statistics --- 2026-04-25 06:56:26 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:56:26 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:56:26 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:56:26 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:56:26 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-04-25 06:56:26 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-04-25 06:56:26 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-04-25 06:56:26 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-04-25 06:56:26 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:56:26 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778534e-05 4.999996e+00 2026-04-25 06:56:26 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:56:26.207816 End time: 2026-04-25 06:56:26.230008 2026-04-25 06:56:26 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:56:26 INFO imstat::::casa ########################################## 2026-04-25 06:56:26 INFO phaseshift::::casa ########################################## 2026-04-25 06:56:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-25 06:56:26 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 5.201492224rad 0.697578292rad' ) 2026-04-25 06:56:26 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-25 06:56:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-25 06:56:26 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-25 06:56:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-25 06:56:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-25 06:56:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-25 06:56:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-25 06:56:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-25 06:56:26 INFO MSTransformManager::open Select data 2026-04-25 06:56:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-25 06:56:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-25 06:56:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 0.697578292rad' successfully parsed 2026-04-25 06:56:29 INFO phaseshift::::casa Shift phase center 2026-04-25 06:56:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-25 06:56:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-25 06:56:26.244031 End time: 2026-04-25 06:56:29.997732 2026-04-25 06:56:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-25 06:56:30 INFO phaseshift::::casa ########################################## 2026-04-25 06:56:30 INFO tclean::::casa ########################################## 2026-04-25 06:56:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-25 06:56:30 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-04-25 06:56:30 INFO tclean::::casa Verifying Input Parameters 2026-04-25 06:56:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-25 06:56:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-25 06:56:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:56:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-25 06:56:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-25 06:56:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-25 06:56:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-25 06:56:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.91 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-25 06:56:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-25 06:56:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-25 06:56:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-25 06:56:31 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-25 06:56:31 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021683 2026-04-25 06:56:31 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:56:31 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-25 06:56:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-25 06:56:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-25 06:56:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-25 06:56:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-25 06:56:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-25 06:56:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:56:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-25 06:56:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-25 06:56:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-25 06:56:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-25 06:56:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-25 06:56:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:56:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-25 06:56:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-25 06:56:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-25 06:56:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-25 06:56:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-25 06:56:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:56:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-25 06:56:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-25 06:56:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-25 06:56:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-25 06:56:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-25 06:56:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-25 06:56:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-25 06:56:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-25 06:56:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-25 06:56:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-25 06:56:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-25 06:56:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-25 06:56:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-25 06:56:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-25 06:56:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-25 06:56:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-04-25 06:56:41 INFO tclean::::casa Task tclean complete. Start time: 2026-04-25 06:56:30.028229 End time: 2026-04-25 06:56:40.784529 2026-04-25 06:56:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-25 06:56:41 INFO tclean::::casa ########################################## 2026-04-25 06:56:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-25 06:56:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:56:41 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-25 06:56:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-25 06:56:41 INFO ImageFitter::fit ****** Fit performed at Sat Apr 25 06:56:41 2026****** 2026-04-25 06:56:41 INFO ImageFitter::fit+ 2026-04-25 06:56:41 INFO ImageFitter::fit+ Input parameters --- 2026-04-25 06:56:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-25 06:56:41 INFO ImageFitter::fit+ --- region: 2026-04-25 06:56:41 INFO ImageFitter::fit+ --- channel: 0 2026-04-25 06:56:41 INFO ImageFitter::fit+ --- stokes: I 2026-04-25 06:56:41 INFO ImageFitter::fit+ --- mask: 2026-04-25 06:56:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-25 06:56:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-25 06:56:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-25 06:56:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:56:41 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-25 06:56:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ Position --- 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-25 06:56:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-25 06:56:41 INFO imstat::::casa ########################################## 2026-04-25 06:56:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-25 06:56:41 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-25 06:56:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-25 06:56:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-25 06:56:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-25 06:56:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-25 06:56:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-25 06:56:41 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-25 06:56:41 INFO imstat:::: Values --- 2026-04-25 06:56:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-25 06:56:41 INFO imstat:::: -- number of points [npts]: 65536 2026-04-25 06:56:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-25 06:56:41 INFO imstat:::: -- minimum value [min]: -7.77956e-05 Jy/beam 2026-04-25 06:56:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-25 06:56:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-25 06:56:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-25 06:56:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-25 06:56:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-25 06:56:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-25 06:56:41 INFO imstat:::: Statistics --- 2026-04-25 06:56:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-25 06:56:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-25 06:56:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-25 06:56:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-25 06:56:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86648e-05 Jy/beam 2026-04-25 06:56:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73536e-05 Jy/beam 2026-04-25 06:56:41 INFO imstat:::: -- IQR [quartile]: 3.5639e-05 Jy/beam 2026-04-25 06:56:41 INFO imstat:::: -- First quartile [q1]: -3.45152e-05 Jy/beam 2026-04-25 06:56:41 INFO imstat:::: -- Third quartile [q3]: 1.12373e-06 Jy/beam 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-25 06:56:41 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.779562e-05 4.999996e+00 2026-04-25 06:56:41 INFO imstat::::casa Task imstat complete. Start time: 2026-04-25 06:56:40.842764 End time: 2026-04-25 06:56:40.870963 2026-04-25 06:56:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-25 06:56:41 INFO imstat::::casa ########################################## . ---------------------------------------------------------------------- Ran 27 tests in 1307.573s OK Generating XML reports...