2026-10-16 02:33:48 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-10-16 02:33:48 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-10-16 02:33:48 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-10-16 02:33:48 INFO ::casa 2026-10-16 02:33:48 INFO ::casa config values 2026-10-16 02:33:48 INFO ::casa agg = False 2026-10-16 02:33:48 INFO ::casa cachedir = '/home/casatest/.casa' 2026-10-16 02:33:48 INFO ::casa casaconfig_verbose = 1 2026-10-16 02:33:48 INFO ::casa colors = 'Neutral' 2026-10-16 02:33:48 INFO ::casa data_auto_update = False 2026-10-16 02:33:48 INFO ::casa data_update_interval = 1 2026-10-16 02:33:48 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-10-16 02:33:48 INFO ::casa iplog = False 2026-10-16 02:33:48 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/ipython-20261016-023342.log' 2026-10-16 02:33:48 INFO ::casa log2term = True 2026-10-16 02:33:48 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/casa-20261016-023342.log' 2026-10-16 02:33:48 INFO ::casa measures_auto_update = False 2026-10-16 02:33:48 INFO ::casa measures_site = ['https://iers.astron.nl/', 'https://go.nrao.edu/iers/'] 2026-10-16 02:33:48 INFO ::casa measures_site_interval = 2 2026-10-16 02:33:48 INFO ::casa measures_update_interval = 1 2026-10-16 02:33:48 INFO ::casa measurespath = '/opt/casa/data/master' 2026-10-16 02:33:48 INFO ::casa nogui = False 2026-10-16 02:33:48 INFO ::casa nologfile = False 2026-10-16 02:33:48 INFO ::casa nologger = True 2026-10-16 02:33:48 INFO ::casa pipeline = False 2026-10-16 02:33:48 INFO ::casa skipnetworkcheck = False 2026-10-16 02:33:48 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-10-16 02:33:48 INFO ::casa user_site = False 2026-10-16 02:33:48 INFO ::casa 2026-10-16 02:33:48 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-10-16 02:33:48 INFO ::casa measures version is unknown, this is probably a legacy version not installed by casaconfig 2026-10-16 02:33:48 INFO ::casa 2026-10-16 02:33:48 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-10-16 02:33:48 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/10/15/15:15, 2026/09/15/00:00:00 2026-10-16 02:33:48 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/10/15/15:15, 2026/09/15/00:00:00 2026-10-16 02:33:48 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/10/15/15:15, 2027/01/13/00:00:00 2026-10-16 02:33:48 INFO ::casa TAI_UTC (version date, last date in table (UTC)): 2026/10/05/15:15, 2017/01/01/00:00:00 Running tests... ---------------------------------------------------------------------- Using user configuration file /home/casatest/.casa/config.py No event loop hook running. Using matplotlib backend: agg CASA 6.7.7.15 -- Common Astronomy Software Applications [6.7.7.15] 2026-10-16 02:33:49 INFO phaseshift::::casa ########################################## 2026-10-16 02:33:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:33:49 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'} ) 2026-10-16 02:33:50 INFO MSTransformManager::parseMsSpecParams Input file name is /opt/casa/data/casatestdata/unittest/phaseshift/split11.ms 2026-10-16 02:33:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:33:50 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshift11.ms 2026-10-16 02:33:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:33:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:33:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:33:50 INFO MSTransformManager::open Select data 2026-10-16 02:33:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:33:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-16 02:33:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 1h27m38.337s +5d25m38.886s' successfully parsed for field 0 2026-10-16 02:33:51 INFO phaseshift::::casa Shift phase center 2026-10-16 02:33:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:33:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:33:48.999341 End time: 2026-10-16 02:33:51.147578 2026-10-16 02:33:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:33:51 INFO phaseshift::::casa ########################################## .2026-10-16 02:33:51 INFO phaseshift::::casa ########################################## 2026-10-16 02:33:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:33:51 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'} ) 2026-10-16 02:33:51 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-16 02:33:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:33:51 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-16 02:33:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:33:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:33:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:33:51 INFO MSTransformManager::open Select data 2026-10-16 02:33:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:33:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-16 02:33:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 19h53m50 40d06m00' successfully parsed for field 0 2026-10-16 02:33:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 22h01m02 40d04m03' successfully parsed for field 2 2026-10-16 02:33:52 INFO phaseshift::::casa Shift phase center 2026-10-16 02:33:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:33:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:33:51.214736 End time: 2026-10-16 02:33:52.046363 2026-10-16 02:33:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:33:52 INFO phaseshift::::casa ########################################## .2026-10-16 02:33:52 INFO phaseshift::::casa ########################################## 2026-10-16 02:33:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:33:52 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'} ) 2026-10-16 02:33:52 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-16 02:33:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:33:52 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-16 02:33:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:33:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:33:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:33:52 INFO MSTransformManager::open Select data 2026-10-16 02:33:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:33:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-16 02:33:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-10-16 02:33:53 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-10-16 02:33:53 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-16 02:33:53 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-16 02:33:53 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'] ) 2026-10-16 02:33:53 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:33:53 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-16 02:33:53 INFO phaseshift::::casa+ mtlocal.open() 2026-10-16 02:33:53 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-16 02:33:53 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-16 02:33:53 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:33:53 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-10-16 02:33:53 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-16 02:33:53 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:33:53 INFO phaseshift::::casa+ RuntimeError: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-10-16 02:33:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:33:52.149487 End time: 2026-10-16 02:33:52.585143 2026-10-16 02:33:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:33:53 INFO phaseshift::::casa ########################################## .2026-10-16 02:33:53 INFO phaseshift::::casa ########################################## 2026-10-16 02:33:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:33:53 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'} ) 2026-10-16 02:33:53 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-16 02:33:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:33:53 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-16 02:33:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:33:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:33:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:33:53 INFO MSTransformManager::open Select data 2026-10-16 02:33:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:33:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-16 02:33:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-10-16 02:33:53 INFO phaseshift::::casa Shift phase center 2026-10-16 02:33:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:33:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:33:52.660866 End time: 2026-10-16 02:33:53.558395 2026-10-16 02:33:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:33:54 INFO phaseshift::::casa ########################################## .2026-10-16 02:33:54 INFO phaseshift::::casa ########################################## 2026-10-16 02:33:54 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:33:54 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'} ) 2026-10-16 02:33:54 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-16 02:33:54 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:33:54 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-16 02:33:54 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:33:54 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-10-16 02:33:54 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:33:54 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:33:54 INFO MSTransformManager::open Select data 2026-10-16 02:33:54 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:33:54 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-10-16 02:33:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-16 02:33:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 1 2026-10-16 02:33:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 22h01m02 40d04m03' successfully parsed for field 2 2026-10-16 02:33:54 INFO phaseshift::::casa Shift phase center 2026-10-16 02:33:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:33:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:33:53.742657 End time: 2026-10-16 02:33:54.558506 2026-10-16 02:33:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:33:55 INFO phaseshift::::casa ########################################## .2026-10-16 02:33:55 INFO phaseshift::::casa ########################################## 2026-10-16 02:33:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:33:55 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'} ) 2026-10-16 02:33:55 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-16 02:33:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:33:55 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-16 02:33:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:33:55 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-10-16 02:33:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:33:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:33:55 INFO MSTransformManager::open Select data 2026-10-16 02:33:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:33:55 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-10-16 02:33:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-16 02:33:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m50 40d06m00' successfully parsed for field 0 2026-10-16 02:33:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 22h01m02 40d04m03' successfully parsed for field 2 2026-10-16 02:33:55 INFO phaseshift::::casa Shift phase center 2026-10-16 02:33:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:33:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:33:54.672471 End time: 2026-10-16 02:33:55.611965 2026-10-16 02:33:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:33:56 INFO phaseshift::::casa ########################################## .2026-10-16 02:33:56 INFO phaseshift::::casa ########################################## 2026-10-16 02:33:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:33:56 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' ) 2026-10-16 02:33:56 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-16 02:33:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:33:56 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-16 02:33:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:33:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:33:56 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:33:56 INFO MSTransformManager::open Select data 2026-10-16 02:33:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:33:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:33:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-16 02:33:56 INFO phaseshift::::casa Shift phase center 2026-10-16 02:33:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:33:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:33:55.707545 End time: 2026-10-16 02:33:56.675026 2026-10-16 02:33:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:33:57 INFO phaseshift::::casa ########################################## ..2026-10-16 02:33:57 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) Requested JD 0 is outside the range of the IERS (Earth axis data) table. 2026-10-16 02:33:57 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) + Calculations will proceed with less precision ..2026-10-16 02:33:57 SEVERE Error in QuantumHolder::fromString with input string "xxh53m50": Illegal input units or format 2026-10-16 02:33:57 SEVERE + in converting quantity from string 2026-10-16 02:33:57 SEVERE Exception Reported: Empty QuantumHolder argument for asQuantumDouble 2026-10-16 02:33:57 SEVERE Exception Reports: Empty QuantumHolder argument for asQuantumDouble 2026-10-16 02:33:57 SEVERE phaseshift::::casa *** Error measures.direction() failed for phasecenter string: BOGUS xxh53m50 40d06m00 when interpreting parameter 'phasecenter': ...2026-10-16 02:34:01 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:01 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' ) 2026-10-16 02:34:01 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-16 02:34:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:34:01 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:34:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:01 INFO MSTransformManager::parseDataSelParams array selection is 1 2026-10-16 02:34:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:34:01 INFO MSTransformManager::open Select data 2026-10-16 02:34:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:01 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-10-16 02:34:01 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-16 02:34:01 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-16 02:34:01 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'] ) 2026-10-16 02:34:01 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:34:01 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-16 02:34:01 INFO phaseshift::::casa+ mtlocal.open() 2026-10-16 02:34:01 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-16 02:34:01 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-16 02:34:01 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:34:01 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-10-16 02:34:01 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-16 02:34:01 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:34:01 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-10-16 02:34:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:01.406849 End time: 2026-10-16 02:34:01.472305 2026-10-16 02:34:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:01 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:01 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:01 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' ) 2026-10-16 02:34:01 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-16 02:34:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:34:01 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:34:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:01 INFO MSTransformManager::parseDataSelParams array selection is 0 2026-10-16 02:34:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:34:02 INFO MSTransformManager::open Select data 2026-10-16 02:34:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:02 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-16 02:34:02 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-16 02:34:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:34:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-16 02:34:03 INFO phaseshift::::casa Shift phase center 2026-10-16 02:34:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:34:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:01.473495 End time: 2026-10-16 02:34:02.789020 2026-10-16 02:34:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:03 INFO phaseshift::::casa ########################################## .2026-10-16 02:34:04 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:04 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' ) 2026-10-16 02:34:04 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-16 02:34:04 INFO MSTransformManager::parseMsSpecParams Data column is MODEL 2026-10-16 02:34:04 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:34:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:04 WARN MSTransformManager::checkDataColumnsToFill MODEL_DATA column requested but not available in input MS 2026-10-16 02:34:04 INFO MSTransformManager::open Select data 2026-10-16 02:34:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:04 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). 2026-10-16 02:34:04 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-16 02:34:04 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-16 02:34:04 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'] ) 2026-10-16 02:34:04 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:34:04 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-16 02:34:04 INFO phaseshift::::casa+ mtlocal.open() 2026-10-16 02:34:04 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-16 02:34:04 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-16 02:34:04 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:34:04 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-10-16 02:34:04 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-16 02:34:04 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:34:04 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). 2026-10-16 02:34:04 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:03.803378 End time: 2026-10-16 02:34:03.835565 2026-10-16 02:34:04 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:04 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:04 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:04 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' ) 2026-10-16 02:34:04 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-16 02:34:04 INFO MSTransformManager::parseMsSpecParams Data column is DATA 2026-10-16 02:34:04 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:34:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:04 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:34:04 INFO MSTransformManager::open Select data 2026-10-16 02:34:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:04 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-16 02:34:04 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-16 02:34:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:34:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-16 02:34:05 INFO phaseshift::::casa Shift phase center 2026-10-16 02:34:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:34:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:03.836646 End time: 2026-10-16 02:34:05.026923 2026-10-16 02:34:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:05 INFO phaseshift::::casa ########################################## .2026-10-16 02:34:06 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:06 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' ) 2026-10-16 02:34:06 INFO MSTransformManager::parseMsSpecParams Input file name is Itziar_copy.ms 2026-10-16 02:34:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:34:06 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:34:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:06 INFO MSTransformManager::parseDataSelParams field selection is 2 2026-10-16 02:34:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:34:06 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:34:06 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:34:06 INFO MSTransformManager::open Select data 2026-10-16 02:34:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:06 INFO MSTransformDataHandler::makeSelection 6125 out of 245000 rows are going to be considered due to the selection criteria. 2026-10-16 02:34:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:34:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 00h00m01 -29d55m40' successfully parsed 2026-10-16 02:34:06 INFO phaseshift::::casa Shift phase center 2026-10-16 02:34:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:34:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:06.032563 End time: 2026-10-16 02:34:06.444989 2026-10-16 02:34:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:06 INFO phaseshift::::casa ########################################## .2026-10-16 02:34:07 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:07 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' ) 2026-10-16 02:34:07 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-16 02:34:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:34:07 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:34:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:07 INFO MSTransformManager::parseDataSelParams scan intent selection is *FLUX* 2026-10-16 02:34:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:34:07 INFO MSTransformManager::open Select data 2026-10-16 02:34:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:07 INFO MSTransformDataHandler::makeSelection 570 out of 6270 rows are going to be considered due to the selection criteria. 2026-10-16 02:34:08 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-16 02:34:08 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-16 02:34:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:34:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-16 02:34:08 INFO phaseshift::::casa Shift phase center 2026-10-16 02:34:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:34:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:07.255569 End time: 2026-10-16 02:34:08.290537 2026-10-16 02:34:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:08 INFO phaseshift::::casa ########################################## .2026-10-16 02:34:09 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:09 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' ) 2026-10-16 02:34:09 INFO MSTransformManager::parseMsSpecParams Input file name is mms_copy.mms 2026-10-16 02:34:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:34:09 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:34:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:34:09 INFO MSTransformManager::open Select data 2026-10-16 02:34:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:34:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 05h30m48 13d31m48' successfully parsed 2026-10-16 02:34:10 INFO phaseshift::::casa Shift phase center 2026-10-16 02:34:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:34:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:09.240522 End time: 2026-10-16 02:34:09.789079 2026-10-16 02:34:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:10 INFO phaseshift::::casa ########################################## .2026-10-16 02:34:11 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:11 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='1', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-10-16 02:34:11 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-16 02:34:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:34:11 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:34:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:11 INFO MSTransformManager::parseDataSelParams observation selection is 1 2026-10-16 02:34:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:34:11 INFO MSTransformManager::open Select data 2026-10-16 02:34:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:11 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-10-16 02:34:11 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-16 02:34:11 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-16 02:34:11 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-10-16 02:34:11 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:34:11 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-16 02:34:11 INFO phaseshift::::casa+ mtlocal.open() 2026-10-16 02:34:11 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-16 02:34:11 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-16 02:34:11 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:34:11 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-10-16 02:34:11 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-16 02:34:11 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:34:11 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-10-16 02:34:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:10.759510 End time: 2026-10-16 02:34:10.803177 2026-10-16 02:34:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:11 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:11 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:11 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='0', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-10-16 02:34:11 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-16 02:34:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:34:11 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:34:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:11 INFO MSTransformManager::parseDataSelParams observation selection is 0 2026-10-16 02:34:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:34:11 INFO MSTransformManager::open Select data 2026-10-16 02:34:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:11 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-16 02:34:11 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-16 02:34:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:34:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-16 02:34:12 INFO phaseshift::::casa Shift phase center 2026-10-16 02:34:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:34:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:10.804348 End time: 2026-10-16 02:34:11.942641 2026-10-16 02:34:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:12 INFO phaseshift::::casa ########################################## .2026-10-16 02:34:13 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:13 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-16 02:34:13 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-16 02:34:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:34:13 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:34:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:34:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:34:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:34:13 INFO MSTransformManager::open Select data 2026-10-16 02:34:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:34:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-16 02:34:13 INFO phaseshift::::casa Shift phase center 2026-10-16 02:34:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:34:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:12.839875 End time: 2026-10-16 02:34:14.408756 2026-10-16 02:34:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:14 INFO phaseshift::::casa ########################################## .2026-10-16 02:34:15 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:15 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='' ) 2026-10-16 02:34:15 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: phasecenter parameter must be specified 2026-10-16 02:34:15 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-16 02:34:15 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-16 02:34:15 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'] ) 2026-10-16 02:34:15 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-16 02:34:15 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-15-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 31, in phaseshift 2026-10-16 02:34:15 INFO phaseshift::::casa+ raise ValueError("phasecenter parameter must be specified") 2026-10-16 02:34:15 INFO phaseshift::::casa+ ValueError: phasecenter parameter must be specified 2026-10-16 02:34:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:15.349036 End time: 2026-10-16 02:34:15.350257 2026-10-16 02:34:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:15 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:15 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:15 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' ) 2026-10-16 02:34:15 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-16 02:34:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:34:15 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:34:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:34:15 INFO MSTransformManager::open Select data 2026-10-16 02:34:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:16 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-16 02:34:16 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-16 02:34:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:34:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -08d23m35' successfully parsed 2026-10-16 02:34:16 INFO phaseshift::::casa Shift phase center 2026-10-16 02:34:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:34:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:15.351305 End time: 2026-10-16 02:34:16.574003 2026-10-16 02:34:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:17 INFO phaseshift::::casa ########################################## .2026-10-16 02:34:18 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:18 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='00h06m14 -08d23m35' ) 2026-10-16 02:34:18 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-16 02:34:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:34:18 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:34:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:34:18 INFO MSTransformManager::open Select data 2026-10-16 02:34:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:18 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-16 02:34:18 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-16 02:34:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:34:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center '00h06m14 -08d23m35' successfully parsed 2026-10-16 02:34:19 INFO phaseshift::::casa Shift phase center 2026-10-16 02:34:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:34:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:17.666364 End time: 2026-10-16 02:34:18.955841 2026-10-16 02:34:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:19 INFO phaseshift::::casa ########################################## .2026-10-16 02:34:20 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:34:20 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='post_phaseshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-16 02:34:20 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-16 02:34:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:34:20 INFO MSTransformManager::parseMsSpecParams Output file name is post_phaseshift.ms 2026-10-16 02:34:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:34:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:34:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:34:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:34:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:34:20 INFO MSTransformManager::open Select data 2026-10-16 02:34:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:34:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:34:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-16 02:34:20 INFO phaseshift::::casa Shift phase center 2026-10-16 02:34:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:34:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:34:19.967127 End time: 2026-10-16 02:34:21.474024 2026-10-16 02:34:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:34:21 INFO phaseshift::::casa ########################################## 2026-10-16 02:34:22 INFO tclean::::casa ########################################## 2026-10-16 02:34:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:34:22 INFO tclean::::casa tclean( vis='datacopy.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_pre', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:34:22 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:34:22 INFO SynthesisImagerVi2::selectData MS : datacopy.ms | [Opened in readonly mode] 2026-10-16 02:34:22 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-10-16 02:34:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-10-16 02:34:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-10-16 02:34:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:34:22 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-10-16 02:34:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_pre] with ftmachine : wprojectft 2026-10-16 02:34:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.4191 GB. Available mem.: 11.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:34:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:34:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_pre] : hogbom 2026-10-16 02:34:22 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:34:22 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-10-16 02:34:22 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-10-16 02:34:22 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-10-16 02:34:22 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-10-16 02:34:51 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 2026-10-16 02:34:51 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 2026-10-16 02:34:54 INFO SIImageStore::calcSensitivity [im2_pre] Theoretical sensitivity (Jy/bm):0.00204403 2026-10-16 02:34:54 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.06405 2026-10-16 02:34:54 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-10-16 02:34:54 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:34:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:34:57 INFO task_tclean::SDAlgorithmBase::restore [im2_pre] : Restoring model image. 2026-10-16 02:34:57 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2353) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-10-16 02:34:57 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-10-16 02:34:57 INFO tclean::::casa Searching for images with prefix 'im2_pre'... Found these, writing history into them: ['im2_pre.image', 'im2_pre.psf', 'im2_pre.pb', 'im2_pre.model', 'im2_pre.residual', 'im2_pre.sumwt'] 2026-10-16 02:34:57 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:34:21.533822 End time: 2026-10-16 02:34:57.333786 2026-10-16 02:34:57 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:34:57 INFO tclean::::casa ########################################## 2026-10-16 02:34:57 INFO tclean::::casa ########################################## 2026-10-16 02:34:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:34:57 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift', imsize=2048, cell='5arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:34:57 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:34:57 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-10-16 02:34:57 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-10-16 02:34:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-10-16 02:34:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-10-16 02:34:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:34:58 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-10-16 02:34:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift] with ftmachine : wprojectft 2026-10-16 02:34:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.4191 GB. Available mem.: 11.01 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:34:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:34:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift] : hogbom 2026-10-16 02:34:58 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:34:58 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-10-16 02:34:58 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-10-16 02:34:58 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-10-16 02:34:58 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-10-16 02:35:28 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 2026-10-16 02:35:28 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 2026-10-16 02:35:31 INFO SIImageStore::calcSensitivity [im2_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00204403 2026-10-16 02:35:31 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.0811 2026-10-16 02:35:31 INFO SIImageStore::printBeamSet Beam : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-10-16 02:35:31 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:35:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:35:34 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift] : Restoring model image. 2026-10-16 02:35:34 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2353) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-10-16 02:35:34 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-10-16 02:35:34 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift'... Found these, writing history into them: ['im2_post_phaseshift.residual', 'im2_post_phaseshift.psf', 'im2_post_phaseshift.sumwt', 'im2_post_phaseshift.image', 'im2_post_phaseshift.pb', 'im2_post_phaseshift.model'] 2026-10-16 02:35:34 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:34:57.355924 End time: 2026-10-16 02:35:33.958966 2026-10-16 02:35:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:35:34 INFO tclean::::casa ########################################## 2026-10-16 02:35:34 INFO tclean::::casa ########################################## 2026-10-16 02:35:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:35:34 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift_tclean_phasecenter', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:35:34 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:35:34 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-10-16 02:35:34 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-10-16 02:35:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-10-16 02:35:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-10-16 02:35:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:35:34 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-10-16 02:35:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift_tclean_phasecenter] with ftmachine : wprojectft 2026-10-16 02:35:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.4191 GB. Available mem.: 11.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:35:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:35:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift_tclean_phasecenter] : hogbom 2026-10-16 02:35:34 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:35:34 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-10-16 02:35:34 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-10-16 02:35:34 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-10-16 02:35:34 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-10-16 02:36:06 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 2026-10-16 02:36:06 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 2026-10-16 02:36:08 INFO SIImageStore::calcSensitivity [im2_post_phaseshift_tclean_phasecenter] Theoretical sensitivity (Jy/bm):0.00204403 2026-10-16 02:36:08 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.059492 2026-10-16 02:36:08 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-10-16 02:36:08 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:36:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:36:11 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift_tclean_phasecenter] : Restoring model image. 2026-10-16 02:36:11 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2353) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-10-16 02:36:11 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-10-16 02:36:11 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift_tclean_phasecenter'... Found these, writing history into them: ['im2_post_phaseshift_tclean_phasecenter.image', 'im2_post_phaseshift_tclean_phasecenter.psf', 'im2_post_phaseshift_tclean_phasecenter.sumwt', 'im2_post_phaseshift_tclean_phasecenter.residual', 'im2_post_phaseshift_tclean_phasecenter.model', 'im2_post_phaseshift_tclean_phasecenter.pb'] 2026-10-16 02:36:11 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:35:33.979232 End time: 2026-10-16 02:36:11.386801 2026-10-16 02:36:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:36:11 INFO tclean::::casa ########################################## Image value at source locations Original MS : {'unit': 'Jy/beam', 'value': 1.0387226343154907} and {'unit': 'Jy/beam', 'value': 5.590171813964844} Phase shifted MS : {'unit': 'Jy/beam', 'value': 1.038696050643921} and {'unit': 'Jy/beam', 'value': 5.589254856109619} .2026-10-16 02:36:13 INFO phaseshift::::casa ########################################## 2026-10-16 02:36:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:36:13 INFO phaseshift::::casa phaseshift( vis='ngc_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='1', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 23h11m54 61d10m54' ) 2026-10-16 02:36:13 INFO MSTransformManager::parseMsSpecParams Input file name is ngc_copy.ms 2026-10-16 02:36:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:36:13 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:36:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:36:13 INFO MSTransformManager::parseDataSelParams spw selection is 1 2026-10-16 02:36:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:36:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:36:13 INFO MSTransformManager::initDataSelectionParams Selected SPWs Ids are Axis Lengths: [1, 4] (NB: Matrix in Row/Column order) 2026-10-16 02:36:13 INFO MSTransformManager::initDataSelectionParams+ [1, 0, 4, 1] 2026-10-16 02:36:13 INFO MSTransformManager::open Select data 2026-10-16 02:36:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:36:13 INFO MSTransformDataHandler::makeSelection 13338 out of 26676 rows are going to be considered due to the selection criteria. 2026-10-16 02:36:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:36:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 23h11m54 61d10m54' successfully parsed 2026-10-16 02:36:13 INFO phaseshift::::casa Shift phase center 2026-10-16 02:36:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:36:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:36:12.504865 End time: 2026-10-16 02:36:12.924049 2026-10-16 02:36:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:36:13 INFO phaseshift::::casa ########################################## .2026-10-16 02:36:14 INFO phaseshift::::casa ########################################## 2026-10-16 02:36:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:36:14 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-16 02:36:14 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-16 02:36:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:36:14 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-16 02:36:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:36:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:36:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:36:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:36:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:36:14 INFO MSTransformManager::open Select data 2026-10-16 02:36:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:36:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:36:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-16 02:36:14 INFO phaseshift::::casa Shift phase center 2026-10-16 02:36:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:36:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:36:13.815684 End time: 2026-10-16 02:36:15.443544 2026-10-16 02:36:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:36:15 INFO phaseshift::::casa ########################################## .2026-10-16 02:36:16 INFO phaseshift::::casa ########################################## 2026-10-16 02:36:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:36:16 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' ) 2026-10-16 02:36:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:36:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:36:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:36:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:36:16 INFO MSTransformManager::parseDataSelParams field selection is 0 2026-10-16 02:36:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:36:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:36:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:36:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:36:16 INFO MSTransformManager::open Select data 2026-10-16 02:36:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:36:16 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-16 02:36:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:36:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-10-16 02:36:16 INFO phaseshift::::casa Shift phase center 2026-10-16 02:36:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:36:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:36:15.996690 End time: 2026-10-16 02:36:16.382548 2026-10-16 02:36:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:36:16 INFO phaseshift::::casa ########################################## 2026-10-16 02:36:16 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-16 02:36:17 INFO tclean::::casa ########################################## 2026-10-16 02:36:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:36:17 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:36:17 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:36:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:36:17 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-16 02:36:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:36:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:36:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:36:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-10-16 02:36:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:36:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 11.02 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:36:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:36:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:36:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:36:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-16 02:36:17 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021913 2026-10-16 02:36:17 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-16 02:36:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:36:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:36:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:36:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:36:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:36:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:36:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-10-16 02:36:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:36:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:36:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:36:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:36:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-10-16 02:36:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-10-16 02:36:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:36:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:36:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-10-16 02:36:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-10-16 02:36:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-10-16 02:36:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:36:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:36:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-10-16 02:36:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-10-16 02:36:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-10-16 02:36:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:36:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:36:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-10-16 02:36:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:36:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:36:18 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:36:18 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-16 02:36:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:36:18 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:36:16.614178 End time: 2026-10-16 02:36:18.043731 2026-10-16 02:36:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:36:18 INFO tclean::::casa ########################################## 2026-10-16 02:36:18 INFO imstat::::casa ########################################## 2026-10-16 02:36:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:36:18 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 ) 2026-10-16 02:36:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:36:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:36:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:36:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:36:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:36:18 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) 2026-10-16 02:36:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:36:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:36:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:36:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:36:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-10-16 02:36:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-10-16 02:36:18 INFO imstat:::: Values --- 2026-10-16 02:36:18 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-10-16 02:36:18 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:36:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:36:18 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-10-16 02:36:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-10-16 02:36:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-10-16 02:36:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-10-16 02:36:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-10-16 02:36:18 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-10-16 02:36:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-10-16 02:36:18 INFO imstat:::: Statistics --- 2026-10-16 02:36:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-10-16 02:36:18 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-10-16 02:36:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-10-16 02:36:18 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-10-16 02:36:18 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-10-16 02:36:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-10-16 02:36:18 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-10-16 02:36:18 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-10-16 02:36:18 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-10-16 02:36:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:36:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:36:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:36:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:36:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:36:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:36:18 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 2026-10-16 02:36:18 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:36:18.054811 End time: 2026-10-16 02:36:18.076861 2026-10-16 02:36:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:36:18 INFO imstat::::casa ########################################## 2026-10-16 02:36:18 INFO phaseshift::::casa ########################################## 2026-10-16 02:36:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:36:18 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' ) 2026-10-16 02:36:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:36:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:36:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:36:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:36:18 INFO MSTransformManager::parseDataSelParams field selection is fake 2026-10-16 02:36:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:36:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:36:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:36:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:36:18 INFO MSTransformManager::open Select data 2026-10-16 02:36:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:36:18 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-16 02:36:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:36:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-10-16 02:36:18 INFO phaseshift::::casa Shift phase center 2026-10-16 02:36:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:36:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:36:18.088541 End time: 2026-10-16 02:36:18.492819 2026-10-16 02:36:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:36:18 INFO phaseshift::::casa ########################################## 2026-10-16 02:36:19 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-10-16 02:36:19 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-16 02:36:19 INFO tclean::::casa ########################################## 2026-10-16 02:36:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:36:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:36:19 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:36:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:36:19 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-16 02:36:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:36:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:36:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:36:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-10-16 02:36:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:36:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 11.02 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:36:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:36:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:36:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:36:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-16 02:36:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020498 2026-10-16 02:36:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-16 02:36:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:36:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:36:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:36:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:36:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:36:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:36:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-10-16 02:36:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:36:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:36:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:36:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:36:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-10-16 02:36:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-10-16 02:36:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:36:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:36:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-10-16 02:36:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-10-16 02:36:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-10-16 02:36:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:36:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:36:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-10-16 02:36:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-10-16 02:36:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-10-16 02:36:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:36:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:36:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-10-16 02:36:20 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:36:20 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:36:20 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:36:20 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-16 02:36:20 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:36:20 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:36:18.539466 End time: 2026-10-16 02:36:19.914295 2026-10-16 02:36:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:36:20 INFO tclean::::casa ########################################## 2026-10-16 02:36:20 INFO imstat::::casa ########################################## 2026-10-16 02:36:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:36:20 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:36:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:36:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:36:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:36:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:36:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:36:20 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz to 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz) 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-10-16 02:36:20 INFO imstat:::: Values --- 2026-10-16 02:36:20 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-10-16 02:36:20 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:36:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:36:20 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-10-16 02:36:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-10-16 02:36:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-10-16 02:36:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-10-16 02:36:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-10-16 02:36:20 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-10-16 02:36:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-10-16 02:36:20 INFO imstat:::: Statistics --- 2026-10-16 02:36:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-10-16 02:36:20 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-10-16 02:36:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-10-16 02:36:20 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-10-16 02:36:20 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-10-16 02:36:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-10-16 02:36:20 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-10-16 02:36:20 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-10-16 02:36:20 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:36:20 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.059610e+02 9.246232e-03 1.521305e-01 1.518505e-01 -1.228298e-04 4.999997e+00 2026-10-16 02:36:20 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:36:19.916469 End time: 2026-10-16 02:36:19.935459 2026-10-16 02:36:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:36:20 INFO imstat::::casa ########################################## 2026-10-16 02:36:20 INFO phaseshift::::casa ########################################## 2026-10-16 02:36:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:36:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-10-16 02:36:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:36:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:36:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:36:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:36:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:36:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:36:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:36:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:36:20 INFO MSTransformManager::open Select data 2026-10-16 02:36:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:36:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:36:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-10-16 02:36:20 INFO phaseshift::::casa Shift phase center 2026-10-16 02:36:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:36:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:36:19.946722 End time: 2026-10-16 02:36:20.364925 2026-10-16 02:36:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:36:20 INFO phaseshift::::casa ########################################## 2026-10-16 02:36:20 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-16 02:36:21 INFO tclean::::casa ########################################## 2026-10-16 02:36:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:36:21 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:36:21 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:36:21 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:36:21 INFO SynthesisImagerVi2::selectData NRows selected : 7020 2026-10-16 02:36:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:36:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:36:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:36:21 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:36:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:36:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 11.02 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:36:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:36:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:36:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:36:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00843949 2026-10-16 02:36:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.012147 2026-10-16 02:36:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-10-16 02:36:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:36:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:36:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:36:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:36:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:36:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:36:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6069034934043884, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.606903, CycleNiter=20, Gain=0.3 2026-10-16 02:36:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:36:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:36:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:36:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:36:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07140088081359863, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0714009, CycleNiter=14, Gain=0.3 2026-10-16 02:36:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-10-16 02:36:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:36:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:36:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-10-16 02:36:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00840018317103386, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00840018, CycleNiter=8, Gain=0.3 2026-10-16 02:36:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-10-16 02:36:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:36:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:36:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814189, over full image : 0.00814189 2026-10-16 02:36:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009882674785330892, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000988267, CycleNiter=2, Gain=0.3 2026-10-16 02:36:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814189->0.00279267, Reached cycleniter. 2026-10-16 02:36:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:36:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:36:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0027928, over full image : 0.0027928 2026-10-16 02:36:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:36:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:36:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:36:22 INFO SIImageStore::restore Beam for chan : 0 : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-10-16 02:36:22 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:36:22 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:36:20.835338 End time: 2026-10-16 02:36:22.289366 2026-10-16 02:36:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:36:22 INFO tclean::::casa ########################################## 2026-10-16 02:36:22 INFO imstat::::casa ########################################## 2026-10-16 02:36:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:36:22 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 ) 2026-10-16 02:36:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:36:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:36:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:36:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:36:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:36:22 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) 2026-10-16 02:36:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:36:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:36:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:36:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:36:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 999981604.64Hz 2026-10-16 02:36:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 999981604.64Hz 2026-10-16 02:36:22 INFO imstat:::: Values --- 2026-10-16 02:36:22 INFO imstat:::: -- flux density [flux]: 4.99444 Jy 2026-10-16 02:36:22 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:36:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:36:22 INFO imstat:::: -- minimum value [min]: -9.70533e-05 Jy/beam 2026-10-16 02:36:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-10-16 02:36:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [158, 70, 0, 0] 2026-10-16 02:36:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981604.64Hz 2026-10-16 02:36:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:29.120, +39.58.47.882, I, 999981604.64Hz 2026-10-16 02:36:22 INFO imstat:::: -- Sum of pixel values [sum]: 610.203 Jy/beam 2026-10-16 02:36:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1527.26 Jy/beam.Jy/beam 2026-10-16 02:36:22 INFO imstat:::: Statistics --- 2026-10-16 02:36:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00931096 Jy/beam 2026-10-16 02:36:22 INFO imstat:::: -- Variance of the pixel values : 0.0232178 Jy/beam 2026-10-16 02:36:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152374 Jy/beam 2026-10-16 02:36:22 INFO imstat:::: -- Root mean square [rms]: 0.152657 Jy/beam 2026-10-16 02:36:22 INFO imstat:::: -- Median of the pixel values [median]: -1.85752e-05 Jy/beam 2026-10-16 02:36:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.83975e-05 Jy/beam 2026-10-16 02:36:22 INFO imstat:::: -- IQR [quartile]: 3.74524e-05 Jy/beam 2026-10-16 02:36:22 INFO imstat:::: -- First quartile [q1]: -3.53147e-05 Jy/beam 2026-10-16 02:36:22 INFO imstat:::: -- Third quartile [q3]: 2.13765e-06 Jy/beam 2026-10-16 02:36:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:36:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:36:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:36:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:36:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:36:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:36:22 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 2026-10-16 02:36:22 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:36:22.291402 End time: 2026-10-16 02:36:22.308387 2026-10-16 02:36:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:36:22 INFO imstat::::casa ########################################## 2026-10-16 02:36:22 INFO phaseshift::::casa ########################################## 2026-10-16 02:36:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:36:22 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' ) 2026-10-16 02:36:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:36:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:36:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:36:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:36:22 INFO MSTransformManager::parseDataSelParams field selection is 1 2026-10-16 02:36:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:36:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:36:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:36:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:36:22 INFO MSTransformManager::open Select data 2026-10-16 02:36:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:36:22 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-16 02:36:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:36:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-10-16 02:36:22 INFO phaseshift::::casa Shift phase center 2026-10-16 02:36:23 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:36:23 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:36:22.319576 End time: 2026-10-16 02:36:22.604927 2026-10-16 02:36:23 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:36:23 INFO phaseshift::::casa ########################################## 2026-10-16 02:36:23 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-16 02:36:23 INFO tclean::::casa ########################################## 2026-10-16 02:36:23 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:36:23 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:36:23 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:36:23 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:36:23 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-16 02:36:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:36:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:36:23 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:36:23 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-10-16 02:36:23 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:36:23 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 11.02 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:36:23 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:36:23 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:36:23 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:36:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-16 02:36:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.016083 2026-10-16 02:36:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-16 02:36:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:36:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:36:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-10-16 02:36:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:36:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:36:24 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-10-16 02:36:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-10-16 02:36:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-10-16 02:36:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:36:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:36:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-10-16 02:36:24 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:36:24 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:36:24 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:36:24 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-16 02:36:24 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:36:24 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:36:23.103178 End time: 2026-10-16 02:36:23.973152 2026-10-16 02:36:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:36:24 INFO tclean::::casa ########################################## 2026-10-16 02:36:24 INFO imstat::::casa ########################################## 2026-10-16 02:36:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:36:24 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 ) 2026-10-16 02:36:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:36:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:36:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:36:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:36:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:36:24 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) 2026-10-16 02:36:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:36:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:36:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:36:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:36:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-10-16 02:36:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-10-16 02:36:24 INFO imstat:::: Values --- 2026-10-16 02:36:24 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-10-16 02:36:24 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:36:24 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-10-16 02:36:24 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-10-16 02:36:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-10-16 02:36:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-10-16 02:36:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-10-16 02:36:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-10-16 02:36:24 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-10-16 02:36:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-10-16 02:36:24 INFO imstat:::: Statistics --- 2026-10-16 02:36:24 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-10-16 02:36:24 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-10-16 02:36:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-10-16 02:36:24 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-10-16 02:36:24 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-10-16 02:36:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-10-16 02:36:24 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-10-16 02:36:24 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-10-16 02:36:24 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-10-16 02:36:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:36:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:36:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:36:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:36:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:36:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:36:24 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 2026-10-16 02:36:24 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:36:23.975882 End time: 2026-10-16 02:36:24.000813 2026-10-16 02:36:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:36:24 INFO imstat::::casa ########################################## 2026-10-16 02:36:24 INFO phaseshift::::casa ########################################## 2026-10-16 02:36:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:36:24 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' ) 2026-10-16 02:36:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:36:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:36:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:36:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:36:24 INFO MSTransformManager::parseDataSelParams field selection is pretend 2026-10-16 02:36:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:36:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:36:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:36:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:36:24 INFO MSTransformManager::open Select data 2026-10-16 02:36:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:36:24 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-16 02:36:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:36:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-10-16 02:36:24 INFO phaseshift::::casa Shift phase center 2026-10-16 02:36:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:36:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:36:24.015503 End time: 2026-10-16 02:36:24.337999 2026-10-16 02:36:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:36:24 INFO phaseshift::::casa ########################################## 2026-10-16 02:36:24 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-10-16 02:36:24 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-16 02:36:24 INFO tclean::::casa ########################################## 2026-10-16 02:36:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:36:24 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:36:24 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:36:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:36:24 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-16 02:36:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:36:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:36:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:36:24 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-10-16 02:36:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:36:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 11.02 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:36:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:36:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:36:24 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:36:25 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-16 02:36:25 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009454 2026-10-16 02:36:25 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-16 02:36:25 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:36:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:36:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-10-16 02:36:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:36:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:36:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-10-16 02:36:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:36:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-10-16 02:36:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-10-16 02:36:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:36:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:36:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-10-16 02:36:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:36:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:36:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:36:25 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-16 02:36:25 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:36:25 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:36:24.376366 End time: 2026-10-16 02:36:25.055734 2026-10-16 02:36:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:36:25 INFO tclean::::casa ########################################## 2026-10-16 02:36:25 INFO imstat::::casa ########################################## 2026-10-16 02:36:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:36:25 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:36:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:36:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:36:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:36:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:36:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:36:25 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) 2026-10-16 02:36:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:36:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:36:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:36:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:36:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-10-16 02:36:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-10-16 02:36:25 INFO imstat:::: Values --- 2026-10-16 02:36:25 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-10-16 02:36:25 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:36:25 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-10-16 02:36:25 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-10-16 02:36:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-10-16 02:36:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-10-16 02:36:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-10-16 02:36:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-10-16 02:36:25 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-10-16 02:36:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-10-16 02:36:25 INFO imstat:::: Statistics --- 2026-10-16 02:36:25 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-10-16 02:36:25 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-10-16 02:36:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-10-16 02:36:25 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-10-16 02:36:25 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-10-16 02:36:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-10-16 02:36:25 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-10-16 02:36:25 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-10-16 02:36:25 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-10-16 02:36:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:36:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:36:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:36:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:36:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:36:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:36:25 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 2026-10-16 02:36:25 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:36:25.057775 End time: 2026-10-16 02:36:25.077464 2026-10-16 02:36:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:36:25 INFO imstat::::casa ########################################## .2026-10-16 02:36:25 INFO tclean::::casa ########################################## 2026-10-16 02:36:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:36:25 INFO tclean::::casa tclean( vis='sim_data.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_orig', imsize=2048, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:36:25 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:36:25 INFO SynthesisImagerVi2::selectData MS : sim_data.ms | [Opened in readonly mode] 2026-10-16 02:36:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:36:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-10-16 02:36:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-10-16 02:36:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:36:26 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [9.99981e+08] at [0] with increment [1e+08] 2026-10-16 02:36:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_orig] with ftmachine : wprojectft 2026-10-16 02:36:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.4191 GB. Available mem.: 11.02 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:36:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:36:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_orig] : hogbom 2026-10-16 02:36:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:36:26 INFO task_tclean::WPConvFunc::findConvFunction W projection using 128 planes 2026-10-16 02:36:26 INFO task_tclean::WPConvFunc::findConvFunction Using maximum possible W = 6445.78 (wavelengths) 2026-10-16 02:36:26 INFO task_tclean::WPConvFunc::findConvFunction Typical wavelength = 0.299799 (m) 2026-10-16 02:36:26 INFO task_tclean::WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.399639 wavelengths per pixel 2026-10-16 02:36:57 INFO task_tclean::WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 48, 48, 48, 48, 52, 52, 52, 52, 52, 56, 56, 56, 56, 60, 60, 60, 60, 64, 64, 64, 64, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 80, 80, 80, 80, 84, 84, 84, 88, 88, 88, 92, 92, 92, 96, 96, 96, 100, 100, 100, 104, 104, 108, 108, 108, 112, 112, 112, 116, 116] pixels in Fourier plane 2026-10-16 02:36:57 INFO task_tclean::WPConvFunc::findConvFunction Memory used in gridding function = 14 MB from maximum 15884 MB 2026-10-16 02:36:59 INFO task_tclean::SIImageStore::calcSensitivity [im_orig] Theoretical sensitivity (Jy/bm):0.00889437 2026-10-16 02:36:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.076424 2026-10-16 02:36:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-10-16 02:36:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:36:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 4.94899 2026-10-16 02:37:02 INFO SynthesisDeconvolver::setupMask [im_orig] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:02 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 % ] 2026-10-16 02:37:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 4.94899, over full image : 4.94899 2026-10-16 02:37:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.5971387624740601, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:02 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.597139, CycleNiter=20, Gain=0.3 2026-10-16 02:37:02 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=0->4.6028, peakres=4.94899->0.435227, Reached cyclethreshold. 2026-10-16 02:37:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 7 iterations. 2026-10-16 02:37:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.45574, over full image : 0.45574 2026-10-16 02:37:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 13, 'cyclethreshold': 0.05498892068862915, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:06 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.0549889, CycleNiter=13, Gain=0.3 2026-10-16 02:37:06 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=4.6028->5.02619, peakres=0.45574->0.0435268, Reached cyclethreshold. 2026-10-16 02:37:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 14 iterations. 2026-10-16 02:37:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0416506, over full image : 0.0416506 2026-10-16 02:37:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 6, 'cyclethreshold': 0.005025508347898722, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:10 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.00502551, CycleNiter=6, Gain=0.3 2026-10-16 02:37:11 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->6 [6], model=5.02619->5.04001, peakres=0.0416506->0.0226678, Reached cycleniter. 2026-10-16 02:37:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.022671, over full image : 0.022671 2026-10-16 02:37:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:15 INFO SDAlgorithmBase::restore [im_orig] : Restoring model image. 2026-10-16 02:37:15 INFO SIImageStore::restore Beam for chan : 0 : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-10-16 02:37:16 INFO tclean::::casa Searching for images with prefix 'im_orig'... Found these, writing history into them: ['im_orig.psf', 'im_orig.image', 'im_orig.residual', 'im_orig.pb', 'im_orig.model', 'im_orig.sumwt', 'im_orig.mask'] 2026-10-16 02:37:16 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:36:25.385239 End time: 2026-10-16 02:37:15.809145 2026-10-16 02:37:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:16 INFO tclean::::casa ########################################## 2026-10-16 02:37:16 INFO imstat::::casa ########################################## 2026-10-16 02:37:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:16 INFO imstat::::casa imstat( imagename='im_orig.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:37:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:16 INFO imstat::image::statistics Determining stats for image im_orig.image 2026-10-16 02:37:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:16 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [2047, 2047, 0, 0] (20:11:05.220, +38.21.11.967, I, 999980841.3Hz to 19:47:03.322, +42.54.02.996, I, 999980841.3Hz) 2026-10-16 02:37:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [2047, 2047, 0, 0] 2026-10-16 02:37:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 20:11:05.220, +38.21.11.967, I, 999980841.3Hz 2026-10-16 02:37:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:47:03.322, +42.54.02.996, I, 999980841.3Hz 2026-10-16 02:37:16 INFO imstat:::: Values --- 2026-10-16 02:37:16 INFO imstat:::: -- flux density [flux]: 5.2713 Jy 2026-10-16 02:37:16 INFO imstat:::: -- number of points [npts]: 4.1943e+06 2026-10-16 02:37:16 INFO imstat:::: -- maximum value [max]: 4.97713 Jy/beam 2026-10-16 02:37:16 INFO imstat:::: -- minimum value [min]: -0.022671 Jy/beam 2026-10-16 02:37:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [1509, 773, 0, 0] 2026-10-16 02:37:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [1708, 965, 0, 0] 2026-10-16 02:37:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.302, +40.06.02.372, I, 999980841.3Hz 2026-10-16 02:37:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:51:28.525, +40.31.07.260, I, 999980841.3Hz 2026-10-16 02:37:16 INFO imstat:::: -- Sum of pixel values [sum]: 641.87 Jy/beam 2026-10-16 02:37:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1619.58 Jy/beam.Jy/beam 2026-10-16 02:37:16 INFO imstat:::: Statistics --- 2026-10-16 02:37:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.000153034 Jy/beam 2026-10-16 02:37:16 INFO imstat:::: -- Variance of the pixel values : 0.000386116 Jy/beam 2026-10-16 02:37:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0196498 Jy/beam 2026-10-16 02:37:16 INFO imstat:::: -- Root mean square [rms]: 0.0196504 Jy/beam 2026-10-16 02:37:16 INFO imstat:::: -- Median of the pixel values [median]: 4.62212e-06 Jy/beam 2026-10-16 02:37:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.003161 Jy/beam 2026-10-16 02:37:16 INFO imstat:::: -- IQR [quartile]: 0.00632194 Jy/beam 2026-10-16 02:37:16 INFO imstat:::: -- First quartile [q1]: -0.00315522 Jy/beam 2026-10-16 02:37:16 INFO imstat:::: -- Third quartile [q3]: 0.00316673 Jy/beam 2026-10-16 02:37:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:16 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 2026-10-16 02:37:16 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:15.811002 End time: 2026-10-16 02:37:16.119486 2026-10-16 02:37:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:16 INFO imstat::::casa ########################################## 2026-10-16 02:37:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:16 INFO ImageRegion::fromRecord+ [1499, 763, 0, 0] to [1519, 783, 0, 0] (19:53:57.382, +40.04.43.647, I, 999980841.3Hz to 19:53:43.216, +40.07.21.070, I, 999980841.3Hz) 2026-10-16 02:37:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:16 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:16 2026****** 2026-10-16 02:37:16 INFO ImageFitter::fit+ 2026-10-16 02:37:16 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_orig.image 2026-10-16 02:37:16 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:16 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:16 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:16 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:16 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.843, +40.05.23.013 to 19:53:46.759, +40.06.41.724) 2026-10-16 02:37:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29832 Jy 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00459192 Jy 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85855 Jy 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00458731 Jy 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ Fit on im_orig.image component 0 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.9885 +/- 0.0032 s (0.0367 arcsec along great circle) 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.0594 +/- 0.0281 arcsec 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- ra: 1509.4535 +/- 0.0046 pixels 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- dec: 772.7181 +/- 0.0035 pixels 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.4778 +/- 0.0014 arcmin 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.2915 +/- 0.0011 arcmin 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.42 +/- 0.26 deg 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.70 arcsec 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.54 arcsec 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- position angle: -89.60 deg 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ Component is a point source 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ An upper limit on its size cannot be determined 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.0049 +/- 0.0079 Jy 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- Peak: 5.0102 +/- 0.0046 Jy/beam 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9808 MHz (29.97982 cm) 2026-10-16 02:37:16 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-16 02:37:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:16 INFO MSTransformManager::open Select data 2026-10-16 02:37:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-16 02:37:16 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:16.252579 End time: 2026-10-16 02:37:16.731376 2026-10-16 02:37:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:17 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:17 INFO tclean::::casa ########################################## 2026-10-16 02:37:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:17 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:17 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:17 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.012761 2026-10-16 02:37:17 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:18 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:18 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:16.876479 End time: 2026-10-16 02:37:18.208895 2026-10-16 02:37:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:18 INFO tclean::::casa ########################################## 2026-10-16 02:37:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:18 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) 2026-10-16 02:37:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:18 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:18 2026****** 2026-10-16 02:37:18 INFO ImageFitter::fit+ 2026-10-16 02:37:18 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:18 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:18 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:18 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:18 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:18 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) 2026-10-16 02:37:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:18 INFO imstat::::casa ########################################## 2026-10-16 02:37:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:18 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:37:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:18 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) 2026-10-16 02:37:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:18 INFO imstat:::: Values --- 2026-10-16 02:37:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:18 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:18 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-16 02:37:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:37:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:18 INFO imstat:::: Statistics --- 2026-10-16 02:37:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-16 02:37:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-16 02:37:18 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-16 02:37:18 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-16 02:37:18 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-16 02:37:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:18 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 2026-10-16 02:37:18 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:18.264140 End time: 2026-10-16 02:37:18.286038 2026-10-16 02:37:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:18 INFO imstat::::casa ########################################## 2026-10-16 02:37:18 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 02:40:24.0000' ) 2026-10-16 02:37:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:18 INFO MSTransformManager::open Select data 2026-10-16 02:37:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-16 02:37:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 02:40:24.0000' successfully parsed 2026-10-16 02:37:18 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:18.300203 End time: 2026-10-16 02:37:18.658465 2026-10-16 02:37:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:19 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:19 INFO tclean::::casa ########################################## 2026-10-16 02:37:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:19 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.00898 2026-10-16 02:37:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:20 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:20 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:20 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:20 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:20 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:20 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:18.675449 End time: 2026-10-16 02:37:20.006962 2026-10-16 02:37:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:20 INFO tclean::::casa ########################################## 2026-10-16 02:37:20 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:20 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:37:20 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:20 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:20 2026****** 2026-10-16 02:37:20 INFO ImageFitter::fit+ 2026-10-16 02:37:20 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:20 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:20 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:20 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:20 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:20 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:20 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:20 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:20 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:20 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) 2026-10-16 02:37:20 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:20 INFO imstat::::casa ########################################## 2026-10-16 02:37:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:20 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 ) 2026-10-16 02:37:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:20 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) 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:20 INFO imstat:::: Values --- 2026-10-16 02:37:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:20 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:20 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-16 02:37:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:37:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:20 INFO imstat:::: Statistics --- 2026-10-16 02:37:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-16 02:37:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-16 02:37:20 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-16 02:37:20 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-16 02:37:20 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:20 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-16 02:37:20 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:20.055301 End time: 2026-10-16 02:37:20.075300 2026-10-16 02:37:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:20 INFO imstat::::casa ########################################## 2026-10-16 02:37:20 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.100000000deg' ) 2026-10-16 02:37:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:20 INFO MSTransformManager::open Select data 2026-10-16 02:37:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.100000000deg' successfully parsed 2026-10-16 02:37:20 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:20.086726 End time: 2026-10-16 02:37:20.511451 2026-10-16 02:37:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:21 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:21 INFO tclean::::casa ########################################## 2026-10-16 02:37:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:21 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:21 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:21 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:21 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009875 2026-10-16 02:37:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:22 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:22 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:20.546130 End time: 2026-10-16 02:37:21.888743 2026-10-16 02:37:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:22 INFO tclean::::casa ########################################## 2026-10-16 02:37:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:22 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) 2026-10-16 02:37:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:22 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:22 2026****** 2026-10-16 02:37:22 INFO ImageFitter::fit+ 2026-10-16 02:37:22 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:22 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:22 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:22 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:22 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:22 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) 2026-10-16 02:37:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:22 INFO imstat::::casa ########################################## 2026-10-16 02:37:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:22 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 ) 2026-10-16 02:37:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:22 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:37:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:22 INFO imstat:::: Values --- 2026-10-16 02:37:22 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:22 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:22 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-16 02:37:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:37:22 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:22 INFO imstat:::: Statistics --- 2026-10-16 02:37:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:22 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:22 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:22 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-16 02:37:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-16 02:37:22 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-16 02:37:22 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-16 02:37:22 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-16 02:37:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:22 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 2026-10-16 02:37:22 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:21.928041 End time: 2026-10-16 02:37:21.946717 2026-10-16 02:37:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:22 INFO imstat::::casa ########################################## 2026-10-16 02:37:22 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:22 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 0.699877030rad' ) 2026-10-16 02:37:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:22 INFO MSTransformManager::open Select data 2026-10-16 02:37:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 0.699877030rad' successfully parsed 2026-10-16 02:37:22 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:21.959116 End time: 2026-10-16 02:37:22.376442 2026-10-16 02:37:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:22 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:22 INFO tclean::::casa ########################################## 2026-10-16 02:37:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:22 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:22 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:23 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:23 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:23 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:23 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:23 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:23 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:23 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020072 2026-10-16 02:37:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:37:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:24 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:24 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:24 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:24 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:24 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:24 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:22.405757 End time: 2026-10-16 02:37:23.880345 2026-10-16 02:37:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:24 INFO tclean::::casa ########################################## 2026-10-16 02:37:24 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:24 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) 2026-10-16 02:37:24 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:24 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:24 2026****** 2026-10-16 02:37:24 INFO ImageFitter::fit+ 2026-10-16 02:37:24 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:24 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:24 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:24 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:24 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:24 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:24 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:24 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:24 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:24 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) 2026-10-16 02:37:24 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:24 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:24 INFO imstat::::casa ########################################## 2026-10-16 02:37:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:24 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 ) 2026-10-16 02:37:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:24 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) 2026-10-16 02:37:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:24 INFO imstat:::: Values --- 2026-10-16 02:37:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:24 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:24 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-10-16 02:37:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:37:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-16 02:37:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:24 INFO imstat:::: Statistics --- 2026-10-16 02:37:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-10-16 02:37:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-16 02:37:24 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-10-16 02:37:24 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-10-16 02:37:24 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-10-16 02:37:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:24 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 2026-10-16 02:37:24 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:23.940245 End time: 2026-10-16 02:37:23.963756 2026-10-16 02:37:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:24 INFO imstat::::casa ########################################## 2026-10-16 02:37:24 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40d06m00' ) 2026-10-16 02:37:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:24 INFO MSTransformManager::open Select data 2026-10-16 02:37:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40d06m00' successfully parsed 2026-10-16 02:37:24 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:23.978976 End time: 2026-10-16 02:37:24.376176 2026-10-16 02:37:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:24 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:24 INFO tclean::::casa ########################################## 2026-10-16 02:37:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:24 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:24 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:24 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:25 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:25 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.008975 2026-10-16 02:37:25 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:25 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:25 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:26 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:24.394220 End time: 2026-10-16 02:37:25.579788 2026-10-16 02:37:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:26 INFO tclean::::casa ########################################## 2026-10-16 02:37:26 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:26 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) 2026-10-16 02:37:26 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:26 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:26 2026****** 2026-10-16 02:37:26 INFO ImageFitter::fit+ 2026-10-16 02:37:26 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:26 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:26 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:26 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:26 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:26 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:26 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:26 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:26 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:26 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) 2026-10-16 02:37:26 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:26 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:26 INFO imstat::::casa ########################################## 2026-10-16 02:37:26 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:26 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 ) 2026-10-16 02:37:26 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:26 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:26 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:26 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:26 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:26 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) 2026-10-16 02:37:26 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:26 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:26 INFO imstat:::: Values --- 2026-10-16 02:37:26 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:26 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:26 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:26 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-16 02:37:26 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:26 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:26 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:26 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:37:26 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:26 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:26 INFO imstat:::: Statistics --- 2026-10-16 02:37:26 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:26 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:26 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:26 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:26 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-16 02:37:26 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-16 02:37:26 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-16 02:37:26 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-16 02:37:26 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-16 02:37:26 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:26 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:26 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:26 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:26 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:26 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:26 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 2026-10-16 02:37:26 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:25.618670 End time: 2026-10-16 02:37:25.643574 2026-10-16 02:37:26 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:26 INFO imstat::::casa ########################################## 2026-10-16 02:37:26 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:26 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 02:40:24.0000' ) 2026-10-16 02:37:26 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:26 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:26 INFO MSTransformManager::open Select data 2026-10-16 02:37:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:26 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-16 02:37:26 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 02:40:24.0000' successfully parsed 2026-10-16 02:37:26 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:25.655026 End time: 2026-10-16 02:37:26.099540 2026-10-16 02:37:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:26 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:26 INFO tclean::::casa ########################################## 2026-10-16 02:37:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:26 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:26 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:26 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017104 2026-10-16 02:37:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:27 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:27 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:27 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:26.117244 End time: 2026-10-16 02:37:27.383058 2026-10-16 02:37:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:27 INFO tclean::::casa ########################################## 2026-10-16 02:37:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:27 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:37:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:27 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:27 2026****** 2026-10-16 02:37:27 INFO ImageFitter::fit+ 2026-10-16 02:37:27 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:27 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:27 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:27 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:27 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:27 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:37:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:27 INFO imstat::::casa ########################################## 2026-10-16 02:37:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:27 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 ) 2026-10-16 02:37:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:27 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) 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:27 INFO imstat:::: Values --- 2026-10-16 02:37:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:27 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:27 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-16 02:37:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:37:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:27 INFO imstat:::: Statistics --- 2026-10-16 02:37:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:27 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-16 02:37:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-16 02:37:27 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-16 02:37:27 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-16 02:37:27 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:27 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-16 02:37:27 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:27.421715 End time: 2026-10-16 02:37:27.439410 2026-10-16 02:37:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:27 INFO imstat::::casa ########################################## 2026-10-16 02:37:27 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:27 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40.100000000deg' ) 2026-10-16 02:37:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:27 INFO MSTransformManager::open Select data 2026-10-16 02:37:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40.100000000deg' successfully parsed 2026-10-16 02:37:28 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:27.451364 End time: 2026-10-16 02:37:27.814159 2026-10-16 02:37:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:28 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:28 INFO tclean::::casa ########################################## 2026-10-16 02:37:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:28 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:28 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:28 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01078 2026-10-16 02:37:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:29 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:27.838351 End time: 2026-10-16 02:37:29.062051 2026-10-16 02:37:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:29 INFO tclean::::casa ########################################## 2026-10-16 02:37:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:29 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) 2026-10-16 02:37:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:29 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:29 2026****** 2026-10-16 02:37:29 INFO ImageFitter::fit+ 2026-10-16 02:37:29 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:29 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:29 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:29 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:29 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:29 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) 2026-10-16 02:37:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:29 INFO imstat::::casa ########################################## 2026-10-16 02:37:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:29 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 ) 2026-10-16 02:37:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:29 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) 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:29 INFO imstat:::: Values --- 2026-10-16 02:37:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:29 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:29 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-16 02:37:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:37:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:29 INFO imstat:::: Statistics --- 2026-10-16 02:37:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-16 02:37:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-16 02:37:29 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-16 02:37:29 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-16 02:37:29 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:29 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-16 02:37:29 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:29.117448 End time: 2026-10-16 02:37:29.139622 2026-10-16 02:37:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:29 INFO imstat::::casa ########################################## 2026-10-16 02:37:29 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:29 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 19:53:50.0000 0.699877030rad' ) 2026-10-16 02:37:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:29 INFO MSTransformManager::open Select data 2026-10-16 02:37:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 0.699877030rad' successfully parsed 2026-10-16 02:37:29 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:29 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:29 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:29.153896 End time: 2026-10-16 02:37:29.494716 2026-10-16 02:37:29 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:29 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:30 INFO tclean::::casa ########################################## 2026-10-16 02:37:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:30 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:30 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:30 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:30 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009414 2026-10-16 02:37:30 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:30 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:37:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:31 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:29.512557 End time: 2026-10-16 02:37:30.910386 2026-10-16 02:37:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:31 INFO tclean::::casa ########################################## 2026-10-16 02:37:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:31 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) 2026-10-16 02:37:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:31 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:31 2026****** 2026-10-16 02:37:31 INFO ImageFitter::fit+ 2026-10-16 02:37:31 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:31 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:31 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:31 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:31 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:31 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) 2026-10-16 02:37:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:31 INFO imstat::::casa ########################################## 2026-10-16 02:37:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:31 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 ) 2026-10-16 02:37:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:31 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) 2026-10-16 02:37:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:31 INFO imstat:::: Values --- 2026-10-16 02:37:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:31 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:31 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-10-16 02:37:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:37:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-16 02:37:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:31 INFO imstat:::: Statistics --- 2026-10-16 02:37:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-10-16 02:37:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-16 02:37:31 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-10-16 02:37:31 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-10-16 02:37:31 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-10-16 02:37:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:31 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 2026-10-16 02:37:31 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:30.948167 End time: 2026-10-16 02:37:30.965725 2026-10-16 02:37:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:31 INFO imstat::::casa ########################################## 2026-10-16 02:37:31 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:31 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 40d06m00' ) 2026-10-16 02:37:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:31 INFO MSTransformManager::open Select data 2026-10-16 02:37:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:31 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40d06m00' successfully parsed 2026-10-16 02:37:31 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:30.977803 End time: 2026-10-16 02:37:31.315024 2026-10-16 02:37:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:31 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:31 INFO tclean::::casa ########################################## 2026-10-16 02:37:31 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:31 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:31 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:31 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:31 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:31 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:31 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:31 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:31 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:31 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:31 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:31 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009736 2026-10-16 02:37:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:32 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:32 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:32 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:37:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:32 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:33 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:31.333032 End time: 2026-10-16 02:37:32.588465 2026-10-16 02:37:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:33 INFO tclean::::casa ########################################## 2026-10-16 02:37:33 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:33 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:37:33 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:33 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:33 2026****** 2026-10-16 02:37:33 INFO ImageFitter::fit+ 2026-10-16 02:37:33 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:33 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:33 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:33 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:33 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:33 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:33 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:33 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:33 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:33 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:37:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:33 INFO imstat::::casa ########################################## 2026-10-16 02:37:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:33 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:37:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:33 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:37:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:33 INFO imstat:::: Values --- 2026-10-16 02:37:33 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:33 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:33 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:33 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-10-16 02:37:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:37:33 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:33 INFO imstat:::: Statistics --- 2026-10-16 02:37:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:33 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:33 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:33 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-10-16 02:37:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-16 02:37:33 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-10-16 02:37:33 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-16 02:37:33 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-10-16 02:37:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:33 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 2026-10-16 02:37:33 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:32.639594 End time: 2026-10-16 02:37:32.663973 2026-10-16 02:37:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:33 INFO imstat::::casa ########################################## 2026-10-16 02:37:33 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:33 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 02:40:24.0000' ) 2026-10-16 02:37:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:33 INFO MSTransformManager::open Select data 2026-10-16 02:37:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:33 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 ".". 2026-10-16 02:37:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 02:40:24.0000' successfully parsed 2026-10-16 02:37:33 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:32.678075 End time: 2026-10-16 02:37:33.047653 2026-10-16 02:37:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:33 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:33 INFO tclean::::casa ########################################## 2026-10-16 02:37:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:33 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:33 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009022 2026-10-16 02:37:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:33 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:34 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:37:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:34 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:34 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:34 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:35 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:33.085460 End time: 2026-10-16 02:37:34.536449 2026-10-16 02:37:35 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:35 INFO tclean::::casa ########################################## 2026-10-16 02:37:35 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:35 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) 2026-10-16 02:37:35 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:35 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:35 2026****** 2026-10-16 02:37:35 INFO ImageFitter::fit+ 2026-10-16 02:37:35 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:35 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:35 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:35 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:35 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:35 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:35 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:35 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:35 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:35 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:37:35 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:35 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:35 INFO imstat::::casa ########################################## 2026-10-16 02:37:35 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:35 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 ) 2026-10-16 02:37:35 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:35 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:35 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:35 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:35 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:35 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) 2026-10-16 02:37:35 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:35 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:35 INFO imstat:::: Values --- 2026-10-16 02:37:35 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:35 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:35 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:35 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-10-16 02:37:35 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:35 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:35 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:35 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:37:35 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:35 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:35 INFO imstat:::: Statistics --- 2026-10-16 02:37:35 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:35 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:35 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:35 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:35 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-10-16 02:37:35 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-16 02:37:35 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-10-16 02:37:35 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-16 02:37:35 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-10-16 02:37:35 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:35 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:35 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:35 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:35 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:35 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:35 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 2026-10-16 02:37:35 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:34.608613 End time: 2026-10-16 02:37:34.639451 2026-10-16 02:37:35 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:35 INFO imstat::::casa ########################################## 2026-10-16 02:37:35 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:35 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40.100000000deg' ) 2026-10-16 02:37:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:35 INFO MSTransformManager::open Select data 2026-10-16 02:37:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40.100000000deg' successfully parsed 2026-10-16 02:37:35 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:34.655374 End time: 2026-10-16 02:37:35.095875 2026-10-16 02:37:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:35 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:35 INFO tclean::::casa ########################################## 2026-10-16 02:37:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:35 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:35 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009614 2026-10-16 02:37:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:37:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:36 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:36 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:35.113718 End time: 2026-10-16 02:37:36.303108 2026-10-16 02:37:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:36 INFO tclean::::casa ########################################## 2026-10-16 02:37:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:36 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) 2026-10-16 02:37:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:36 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:36 2026****** 2026-10-16 02:37:36 INFO ImageFitter::fit+ 2026-10-16 02:37:36 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:36 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:36 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:36 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:36 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:36 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) 2026-10-16 02:37:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:36 INFO imstat::::casa ########################################## 2026-10-16 02:37:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:36 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 ) 2026-10-16 02:37:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:36 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) 2026-10-16 02:37:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:36 INFO imstat:::: Values --- 2026-10-16 02:37:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:36 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:36 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-10-16 02:37:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:37:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:36 INFO imstat:::: Statistics --- 2026-10-16 02:37:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-10-16 02:37:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-16 02:37:36 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-10-16 02:37:36 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-16 02:37:36 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-10-16 02:37:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:36 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 2026-10-16 02:37:36 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:36.339860 End time: 2026-10-16 02:37:36.357142 2026-10-16 02:37:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:36 INFO imstat::::casa ########################################## 2026-10-16 02:37:36 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:36 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 0.699877030rad' ) 2026-10-16 02:37:36 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:36 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:36 INFO MSTransformManager::open Select data 2026-10-16 02:37:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 0.699877030rad' successfully parsed 2026-10-16 02:37:37 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:36.368761 End time: 2026-10-16 02:37:36.713328 2026-10-16 02:37:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:37 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:37 INFO tclean::::casa ########################################## 2026-10-16 02:37:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:37 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:37 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:37 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:37 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.012691 2026-10-16 02:37:37 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:37 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:37:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:38 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:38 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:38 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:36.731355 End time: 2026-10-16 02:37:37.957335 2026-10-16 02:37:38 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:38 INFO tclean::::casa ########################################## 2026-10-16 02:37:38 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:38 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) 2026-10-16 02:37:38 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:38 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:38 2026****** 2026-10-16 02:37:38 INFO ImageFitter::fit+ 2026-10-16 02:37:38 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:38 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:38 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:38 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:38 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:38 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:38 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:38 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:38 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:38 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:37:38 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:38 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:38 INFO imstat::::casa ########################################## 2026-10-16 02:37:38 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:38 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 ) 2026-10-16 02:37:38 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:38 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:38 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:38 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:38 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:38 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) 2026-10-16 02:37:38 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:38 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:38 INFO imstat:::: Values --- 2026-10-16 02:37:38 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:38 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:38 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:38 INFO imstat:::: -- minimum value [min]: -7.77738e-05 Jy/beam 2026-10-16 02:37:38 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:38 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:38 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:38 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:37:38 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:38 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:38 INFO imstat:::: Statistics --- 2026-10-16 02:37:38 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:38 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:38 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:38 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:38 INFO imstat:::: -- Median of the pixel values [median]: -1.86662e-05 Jy/beam 2026-10-16 02:37:38 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73577e-05 Jy/beam 2026-10-16 02:37:38 INFO imstat:::: -- IQR [quartile]: 3.56242e-05 Jy/beam 2026-10-16 02:37:38 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-16 02:37:38 INFO imstat:::: -- Third quartile [q3]: 1.11673e-06 Jy/beam 2026-10-16 02:37:38 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:38 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:38 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:38 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:38 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:38 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:38 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 2026-10-16 02:37:38 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:38.010804 End time: 2026-10-16 02:37:38.036494 2026-10-16 02:37:38 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:38 INFO imstat::::casa ########################################## 2026-10-16 02:37:38 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:38 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40d06m00' ) 2026-10-16 02:37:38 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:38 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:38 INFO MSTransformManager::open Select data 2026-10-16 02:37:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40d06m00' successfully parsed 2026-10-16 02:37:38 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:38 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:38.052000 End time: 2026-10-16 02:37:38.502636 2026-10-16 02:37:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:39 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:39 INFO tclean::::casa ########################################## 2026-10-16 02:37:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:39 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:39 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:39 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:39 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.019057 2026-10-16 02:37:39 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:39 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:39 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:40 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:38.521398 End time: 2026-10-16 02:37:39.830511 2026-10-16 02:37:40 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:40 INFO tclean::::casa ########################################## 2026-10-16 02:37:40 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:40 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:37:40 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:40 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:40 2026****** 2026-10-16 02:37:40 INFO ImageFitter::fit+ 2026-10-16 02:37:40 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:40 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:40 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:40 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:40 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:40 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:40 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:40 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:40 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:40 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:37:40 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:40 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:40 INFO imstat::::casa ########################################## 2026-10-16 02:37:40 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:40 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:37:40 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:40 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:40 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:40 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:40 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:40 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:37:40 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:40 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:40 INFO imstat:::: Values --- 2026-10-16 02:37:40 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:40 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:40 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:40 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-16 02:37:40 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:40 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:37:40 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:40 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-16 02:37:40 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:40 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:40 INFO imstat:::: Statistics --- 2026-10-16 02:37:40 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:40 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:40 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:40 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:40 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-10-16 02:37:40 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-10-16 02:37:40 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-10-16 02:37:40 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-10-16 02:37:40 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-10-16 02:37:40 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:40 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:40 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:40 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:40 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:40 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:40 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 2026-10-16 02:37:40 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:39.868688 End time: 2026-10-16 02:37:39.887021 2026-10-16 02:37:40 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:40 INFO imstat::::casa ########################################## 2026-10-16 02:37:40 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:40 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 02:40:24.0000' ) 2026-10-16 02:37:40 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:40 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:40 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:40 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:40 INFO MSTransformManager::open Select data 2026-10-16 02:37:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:40 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 ".". 2026-10-16 02:37:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 02:40:24.0000' successfully parsed 2026-10-16 02:37:40 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:39.898570 End time: 2026-10-16 02:37:40.318711 2026-10-16 02:37:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:40 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:40 INFO tclean::::casa ########################################## 2026-10-16 02:37:40 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:40 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:40 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:40 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:40 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:40 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:40 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:40 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:40 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:40 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:40 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:40 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011127 2026-10-16 02:37:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:42 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:42 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:40.337014 End time: 2026-10-16 02:37:41.600153 2026-10-16 02:37:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:42 INFO tclean::::casa ########################################## 2026-10-16 02:37:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:42 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) 2026-10-16 02:37:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:42 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:42 2026****** 2026-10-16 02:37:42 INFO ImageFitter::fit+ 2026-10-16 02:37:42 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:42 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:42 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:42 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:42 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:42 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:37:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:42 INFO imstat::::casa ########################################## 2026-10-16 02:37:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:42 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 ) 2026-10-16 02:37:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:42 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) 2026-10-16 02:37:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:42 INFO imstat:::: Values --- 2026-10-16 02:37:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:42 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:42 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-16 02:37:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:37:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-16 02:37:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:42 INFO imstat:::: Statistics --- 2026-10-16 02:37:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-10-16 02:37:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-10-16 02:37:42 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-10-16 02:37:42 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-10-16 02:37:42 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-10-16 02:37:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:42 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 2026-10-16 02:37:42 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:41.638686 End time: 2026-10-16 02:37:41.656604 2026-10-16 02:37:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:42 INFO imstat::::casa ########################################## 2026-10-16 02:37:42 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:42 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40.100000000deg' ) 2026-10-16 02:37:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:42 INFO MSTransformManager::open Select data 2026-10-16 02:37:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40.100000000deg' successfully parsed 2026-10-16 02:37:42 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:41.668245 End time: 2026-10-16 02:37:42.151649 2026-10-16 02:37:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:42 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:42 INFO tclean::::casa ########################################## 2026-10-16 02:37:42 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:42 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:42 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:42 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:42 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:42 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:42 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:42 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:42 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:42 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:42 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:42 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:42 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:42 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.00931 2026-10-16 02:37:42 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:42 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:43 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:43 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:43 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:44 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:42.182291 End time: 2026-10-16 02:37:43.562015 2026-10-16 02:37:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:44 INFO tclean::::casa ########################################## 2026-10-16 02:37:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:44 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) 2026-10-16 02:37:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:44 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:44 2026****** 2026-10-16 02:37:44 INFO ImageFitter::fit+ 2026-10-16 02:37:44 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:44 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:44 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:44 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:44 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:44 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) 2026-10-16 02:37:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:44 INFO imstat::::casa ########################################## 2026-10-16 02:37:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:44 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 ) 2026-10-16 02:37:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:44 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) 2026-10-16 02:37:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:44 INFO imstat:::: Values --- 2026-10-16 02:37:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:44 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:44 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-16 02:37:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:37:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-16 02:37:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:44 INFO imstat:::: Statistics --- 2026-10-16 02:37:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-10-16 02:37:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-10-16 02:37:44 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-10-16 02:37:44 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-10-16 02:37:44 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-10-16 02:37:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:44 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 2026-10-16 02:37:44 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:43.623446 End time: 2026-10-16 02:37:43.646969 2026-10-16 02:37:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:44 INFO imstat::::casa ########################################## 2026-10-16 02:37:44 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:44 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 0.699877030rad' ) 2026-10-16 02:37:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:44 INFO MSTransformManager::open Select data 2026-10-16 02:37:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 0.699877030rad' successfully parsed 2026-10-16 02:37:44 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:44 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:43.661869 End time: 2026-10-16 02:37:44.100181 2026-10-16 02:37:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:44 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:44 INFO tclean::::casa ########################################## 2026-10-16 02:37:44 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:44 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:44 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:44 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:44 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:44 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:44 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:44 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:44 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:44 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:44 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:44 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:44 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:44 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.00908 2026-10-16 02:37:44 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:44 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:37:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:45 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:45 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:44.130296 End time: 2026-10-16 02:37:45.419675 2026-10-16 02:37:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:45 INFO tclean::::casa ########################################## 2026-10-16 02:37:45 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:45 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:37:45 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:45 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:45 2026****** 2026-10-16 02:37:45 INFO ImageFitter::fit+ 2026-10-16 02:37:45 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:45 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:45 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:45 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:45 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:45 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:45 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:45 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:45 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:45 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:37:45 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:45 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:45 INFO imstat::::casa ########################################## 2026-10-16 02:37:45 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:45 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:37:45 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:45 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:45 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:45 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:45 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:45 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:37:45 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:45 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:45 INFO imstat:::: Values --- 2026-10-16 02:37:45 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:45 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:45 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:45 INFO imstat:::: -- minimum value [min]: -7.77793e-05 Jy/beam 2026-10-16 02:37:45 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:45 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:37:45 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:45 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-16 02:37:45 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:45 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:45 INFO imstat:::: Statistics --- 2026-10-16 02:37:45 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:45 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:45 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:45 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:45 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-10-16 02:37:45 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73592e-05 Jy/beam 2026-10-16 02:37:45 INFO imstat:::: -- IQR [quartile]: 3.55982e-05 Jy/beam 2026-10-16 02:37:45 INFO imstat:::: -- First quartile [q1]: -3.45035e-05 Jy/beam 2026-10-16 02:37:45 INFO imstat:::: -- Third quartile [q3]: 1.09469e-06 Jy/beam 2026-10-16 02:37:45 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:45 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:45 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:45 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:45 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:45 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:45 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 2026-10-16 02:37:45 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:45.459991 End time: 2026-10-16 02:37:45.478646 2026-10-16 02:37:45 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:45 INFO imstat::::casa ########################################## 2026-10-16 02:37:45 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:45 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40d06m0.0019' ) 2026-10-16 02:37:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:46 INFO MSTransformManager::open Select data 2026-10-16 02:37:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:46 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:46 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40d06m0.0019' successfully parsed 2026-10-16 02:37:46 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:45.490543 End time: 2026-10-16 02:37:45.862682 2026-10-16 02:37:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:46 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:46 INFO tclean::::casa ########################################## 2026-10-16 02:37:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:46 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009335 2026-10-16 02:37:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:46 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:47 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:45.881363 End time: 2026-10-16 02:37:47.312758 2026-10-16 02:37:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:47 INFO tclean::::casa ########################################## 2026-10-16 02:37:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:47 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) 2026-10-16 02:37:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:47 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:47 2026****** 2026-10-16 02:37:47 INFO ImageFitter::fit+ 2026-10-16 02:37:47 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:47 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:47 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:47 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:47 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:47 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) 2026-10-16 02:37:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:47 INFO imstat::::casa ########################################## 2026-10-16 02:37:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:47 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 ) 2026-10-16 02:37:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:47 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) 2026-10-16 02:37:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:47 INFO imstat:::: Values --- 2026-10-16 02:37:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:47 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:47 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-16 02:37:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-16 02:37:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:47 INFO imstat:::: Statistics --- 2026-10-16 02:37:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-10-16 02:37:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-10-16 02:37:47 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-10-16 02:37:47 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-10-16 02:37:47 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-10-16 02:37:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:47 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 2026-10-16 02:37:47 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:47.351437 End time: 2026-10-16 02:37:47.369031 2026-10-16 02:37:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:47 INFO imstat::::casa ########################################## 2026-10-16 02:37:47 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 02:40:24.0001' ) 2026-10-16 02:37:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:47 INFO MSTransformManager::open Select data 2026-10-16 02:37:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-16 02:37:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 02:40:24.0001' successfully parsed 2026-10-16 02:37:48 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:47.380462 End time: 2026-10-16 02:37:47.718152 2026-10-16 02:37:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:48 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:48 INFO tclean::::casa ########################################## 2026-10-16 02:37:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:48 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:48 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.012797 2026-10-16 02:37:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:37:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:49 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:49 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:47.736965 End time: 2026-10-16 02:37:49.463922 2026-10-16 02:37:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:49 INFO tclean::::casa ########################################## 2026-10-16 02:37:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:49 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) 2026-10-16 02:37:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:49 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:49 2026****** 2026-10-16 02:37:49 INFO ImageFitter::fit+ 2026-10-16 02:37:49 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:49 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:49 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:49 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:49 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:50 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-10-16 02:37:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:50 INFO imstat::::casa ########################################## 2026-10-16 02:37:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:50 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:37:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:50 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) 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:50 INFO imstat:::: Values --- 2026-10-16 02:37:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:50 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:50 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-10-16 02:37:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:37:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-16 02:37:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:50 INFO imstat:::: Statistics --- 2026-10-16 02:37:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:50 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-10-16 02:37:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-10-16 02:37:50 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-10-16 02:37:50 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-10-16 02:37:50 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:50 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-10-16 02:37:50 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:49.528992 End time: 2026-10-16 02:37:49.553960 2026-10-16 02:37:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:50 INFO imstat::::casa ########################################## 2026-10-16 02:37:50 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:50 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40.100000528deg' ) 2026-10-16 02:37:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:50 INFO MSTransformManager::open Select data 2026-10-16 02:37:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40.100000528deg' successfully parsed 2026-10-16 02:37:50 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:49.569187 End time: 2026-10-16 02:37:50.009708 2026-10-16 02:37:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:50 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:50 INFO tclean::::casa ########################################## 2026-10-16 02:37:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:50 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:50 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.012142 2026-10-16 02:37:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:51 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:51 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:50.028457 End time: 2026-10-16 02:37:51.484710 2026-10-16 02:37:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:51 INFO tclean::::casa ########################################## 2026-10-16 02:37:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:51 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:37:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:52 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:52 2026****** 2026-10-16 02:37:52 INFO ImageFitter::fit+ 2026-10-16 02:37:52 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:52 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:52 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:52 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:52 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:52 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) 2026-10-16 02:37:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:52 INFO imstat::::casa ########################################## 2026-10-16 02:37:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:52 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 ) 2026-10-16 02:37:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:52 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) 2026-10-16 02:37:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:52 INFO imstat:::: Values --- 2026-10-16 02:37:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:52 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:52 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-16 02:37:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-16 02:37:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:52 INFO imstat:::: Statistics --- 2026-10-16 02:37:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-16 02:37:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-10-16 02:37:52 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-10-16 02:37:52 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-10-16 02:37:52 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-10-16 02:37:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:52 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 2026-10-16 02:37:52 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:51.525600 End time: 2026-10-16 02:37:51.544895 2026-10-16 02:37:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:52 INFO imstat::::casa ########################################## 2026-10-16 02:37:52 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:52 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 19h53m49.9980 0.699877039rad' ) 2026-10-16 02:37:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:52 INFO MSTransformManager::open Select data 2026-10-16 02:37:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 0.699877039rad' successfully parsed 2026-10-16 02:37:52 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:51.558759 End time: 2026-10-16 02:37:51.973962 2026-10-16 02:37:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:52 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:52 INFO tclean::::casa ########################################## 2026-10-16 02:37:52 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:52 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:52 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:52 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:52 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:52 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:52 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:52 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:52 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:52 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:52 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:52 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:52 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010155 2026-10-16 02:37:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:53 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:53 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:53 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:51.993960 End time: 2026-10-16 02:37:53.265610 2026-10-16 02:37:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:53 INFO tclean::::casa ########################################## 2026-10-16 02:37:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:53 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) 2026-10-16 02:37:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:53 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:53 2026****** 2026-10-16 02:37:53 INFO ImageFitter::fit+ 2026-10-16 02:37:53 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:53 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:53 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:53 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:53 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:53 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) 2026-10-16 02:37:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:53 INFO imstat::::casa ########################################## 2026-10-16 02:37:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:53 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 ) 2026-10-16 02:37:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:53 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) 2026-10-16 02:37:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:53 INFO imstat:::: Values --- 2026-10-16 02:37:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:53 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:53 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-10-16 02:37:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-16 02:37:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:53 INFO imstat:::: Statistics --- 2026-10-16 02:37:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-10-16 02:37:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-10-16 02:37:53 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-10-16 02:37:53 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-16 02:37:53 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-10-16 02:37:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:53 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 2026-10-16 02:37:53 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:53.303405 End time: 2026-10-16 02:37:53.321494 2026-10-16 02:37:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:53 INFO imstat::::casa ########################################## 2026-10-16 02:37:53 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40d06m0.0019' ) 2026-10-16 02:37:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:53 INFO MSTransformManager::open Select data 2026-10-16 02:37:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40d06m0.0019' successfully parsed 2026-10-16 02:37:54 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:53.333350 End time: 2026-10-16 02:37:53.754098 2026-10-16 02:37:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:54 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:54 INFO tclean::::casa ########################################## 2026-10-16 02:37:54 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:54 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:54 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:54 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:54 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:54 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:54 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:54 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:54 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:54 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:54 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:54 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:54 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:54 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009245 2026-10-16 02:37:54 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:54 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:55 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:55 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:55 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:53.771898 End time: 2026-10-16 02:37:55.030512 2026-10-16 02:37:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:55 INFO tclean::::casa ########################################## 2026-10-16 02:37:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:55 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) 2026-10-16 02:37:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:55 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:55 2026****** 2026-10-16 02:37:55 INFO ImageFitter::fit+ 2026-10-16 02:37:55 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:55 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:55 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:55 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:55 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:55 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) 2026-10-16 02:37:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:55 INFO imstat::::casa ########################################## 2026-10-16 02:37:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:55 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 ) 2026-10-16 02:37:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:55 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) 2026-10-16 02:37:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:55 INFO imstat:::: Values --- 2026-10-16 02:37:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:55 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:55 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-16 02:37:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-16 02:37:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:55 INFO imstat:::: Statistics --- 2026-10-16 02:37:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-10-16 02:37:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-10-16 02:37:55 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-10-16 02:37:55 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-10-16 02:37:55 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-10-16 02:37:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:55 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 2026-10-16 02:37:55 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:55.068248 End time: 2026-10-16 02:37:55.085962 2026-10-16 02:37:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:55 INFO imstat::::casa ########################################## 2026-10-16 02:37:55 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:55 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 02:40:24.0001' ) 2026-10-16 02:37:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:55 INFO MSTransformManager::open Select data 2026-10-16 02:37:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:55 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 ".". 2026-10-16 02:37:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 02:40:24.0001' successfully parsed 2026-10-16 02:37:55 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:55.097239 End time: 2026-10-16 02:37:55.485311 2026-10-16 02:37:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:55 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:56 INFO tclean::::casa ########################################## 2026-10-16 02:37:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:56 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009572 2026-10-16 02:37:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:56 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:37:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:57 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:57 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:57 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:57 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:55.502946 End time: 2026-10-16 02:37:56.828472 2026-10-16 02:37:57 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:57 INFO tclean::::casa ########################################## 2026-10-16 02:37:57 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:57 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) 2026-10-16 02:37:57 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:57 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:57 2026****** 2026-10-16 02:37:57 INFO ImageFitter::fit+ 2026-10-16 02:37:57 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:57 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:57 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:57 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:57 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:57 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:57 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:57 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:57 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:57 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) 2026-10-16 02:37:57 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:57 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:57 INFO imstat::::casa ########################################## 2026-10-16 02:37:57 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:57 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 ) 2026-10-16 02:37:57 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:57 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:57 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:57 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:57 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:57 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) 2026-10-16 02:37:57 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:57 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:57 INFO imstat:::: Values --- 2026-10-16 02:37:57 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:57 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:57 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:57 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-10-16 02:37:57 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:57 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:37:57 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:57 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-16 02:37:57 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:57 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:57 INFO imstat:::: Statistics --- 2026-10-16 02:37:57 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:57 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:57 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:57 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:57 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-10-16 02:37:57 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-10-16 02:37:57 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-10-16 02:37:57 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-10-16 02:37:57 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-10-16 02:37:57 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:57 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:57 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:57 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:57 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:57 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:57 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 2026-10-16 02:37:57 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:56.878227 End time: 2026-10-16 02:37:56.898778 2026-10-16 02:37:57 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:57 INFO imstat::::casa ########################################## 2026-10-16 02:37:57 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:57 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:57 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40.100000528deg' ) 2026-10-16 02:37:57 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:57 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:57 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:57 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:57 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:57 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:57 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:57 INFO MSTransformManager::open Select data 2026-10-16 02:37:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40.100000528deg' successfully parsed 2026-10-16 02:37:57 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:56.910078 End time: 2026-10-16 02:37:57.300245 2026-10-16 02:37:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:57 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:57 INFO tclean::::casa ########################################## 2026-10-16 02:37:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:57 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009218 2026-10-16 02:37:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:37:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:37:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:37:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:37:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:37:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:37:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:37:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:37:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:37:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:37:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:37:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:37:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:37:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:37:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:37:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:37:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:37:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:37:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:37:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:37:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:37:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:37:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:37:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:37:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:37:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:37:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:37:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:37:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:37:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:37:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:37:59 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:57.317249 End time: 2026-10-16 02:37:58.690599 2026-10-16 02:37:59 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:37:59 INFO tclean::::casa ########################################## 2026-10-16 02:37:59 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:37:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:59 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) 2026-10-16 02:37:59 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:37:59 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:37:59 2026****** 2026-10-16 02:37:59 INFO ImageFitter::fit+ 2026-10-16 02:37:59 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:37:59 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:37:59 INFO ImageFitter::fit+ --- region: 2026-10-16 02:37:59 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:37:59 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:37:59 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:37:59 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:37:59 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:37:59 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:37:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:59 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) 2026-10-16 02:37:59 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:37:59 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:37:59 INFO imstat::::casa ########################################## 2026-10-16 02:37:59 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:37:59 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 ) 2026-10-16 02:37:59 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:37:59 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:37:59 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:37:59 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:37:59 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:37:59 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) 2026-10-16 02:37:59 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:37:59 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:37:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:37:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:37:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:37:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:37:59 INFO imstat:::: Values --- 2026-10-16 02:37:59 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:37:59 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:37:59 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:37:59 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-16 02:37:59 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:37:59 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:37:59 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:37:59 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-16 02:37:59 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:37:59 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:37:59 INFO imstat:::: Statistics --- 2026-10-16 02:37:59 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:37:59 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:37:59 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:37:59 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:37:59 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-16 02:37:59 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-10-16 02:37:59 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-10-16 02:37:59 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-10-16 02:37:59 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-10-16 02:37:59 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:37:59 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:37:59 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:37:59 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:37:59 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:37:59 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:37:59 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 2026-10-16 02:37:59 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:37:58.744688 End time: 2026-10-16 02:37:58.766629 2026-10-16 02:37:59 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:37:59 INFO imstat::::casa ########################################## 2026-10-16 02:37:59 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:37:59 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 0.699877039rad' ) 2026-10-16 02:37:59 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:37:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:37:59 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:37:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:37:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:37:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:37:59 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:37:59 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:37:59 INFO MSTransformManager::open Select data 2026-10-16 02:37:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:37:59 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:37:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 0.699877039rad' successfully parsed 2026-10-16 02:37:59 INFO phaseshift::::casa Shift phase center 2026-10-16 02:37:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:37:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:37:58.780248 End time: 2026-10-16 02:37:59.187730 2026-10-16 02:37:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:37:59 INFO phaseshift::::casa ########################################## 2026-10-16 02:37:59 INFO tclean::::casa ########################################## 2026-10-16 02:37:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:37:59 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:37:59 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:37:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:37:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:37:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:37:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:37:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:37:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:37:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:37:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:37:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:37:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:37:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:37:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017748 2026-10-16 02:37:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:37:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:38:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:01 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:01 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:37:59.204987 End time: 2026-10-16 02:38:00.635551 2026-10-16 02:38:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:01 INFO tclean::::casa ########################################## 2026-10-16 02:38:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:01 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) 2026-10-16 02:38:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:01 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:01 2026****** 2026-10-16 02:38:01 INFO ImageFitter::fit+ 2026-10-16 02:38:01 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:01 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:01 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:01 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:01 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:01 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) 2026-10-16 02:38:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:01 INFO imstat::::casa ########################################## 2026-10-16 02:38:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:01 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 ) 2026-10-16 02:38:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:01 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) 2026-10-16 02:38:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:01 INFO imstat:::: Values --- 2026-10-16 02:38:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:01 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:01 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-10-16 02:38:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-16 02:38:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:01 INFO imstat:::: Statistics --- 2026-10-16 02:38:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-10-16 02:38:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-10-16 02:38:01 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-10-16 02:38:01 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-16 02:38:01 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-10-16 02:38:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:01 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 2026-10-16 02:38:01 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:00.675011 End time: 2026-10-16 02:38:00.693022 2026-10-16 02:38:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:01 INFO imstat::::casa ########################################## 2026-10-16 02:38:01 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40d06m0.0019' ) 2026-10-16 02:38:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:01 INFO MSTransformManager::open Select data 2026-10-16 02:38:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40d06m0.0019' successfully parsed 2026-10-16 02:38:01 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:01 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:00.704940 End time: 2026-10-16 02:38:01.172721 2026-10-16 02:38:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:01 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:01 INFO tclean::::casa ########################################## 2026-10-16 02:38:01 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:01 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:01 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:01 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:01 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:01 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:01 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:01 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:01 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:01 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:01 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:01 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:01 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:01 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009715 2026-10-16 02:38:01 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:01 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:38:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:02 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:03 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:03 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:01.190377 End time: 2026-10-16 02:38:02.617871 2026-10-16 02:38:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:03 INFO tclean::::casa ########################################## 2026-10-16 02:38:03 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:03 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) 2026-10-16 02:38:03 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:03 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:03 2026****** 2026-10-16 02:38:03 INFO ImageFitter::fit+ 2026-10-16 02:38:03 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:03 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:03 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:03 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:03 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:03 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:03 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:03 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:03 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:03 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) 2026-10-16 02:38:03 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:03 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:03 INFO imstat::::casa ########################################## 2026-10-16 02:38:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:03 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 ) 2026-10-16 02:38:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:03 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) 2026-10-16 02:38:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:03 INFO imstat:::: Values --- 2026-10-16 02:38:03 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:03 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:03 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-16 02:38:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-16 02:38:03 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:03 INFO imstat:::: Statistics --- 2026-10-16 02:38:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:03 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:03 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:03 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-10-16 02:38:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-10-16 02:38:03 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-10-16 02:38:03 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-10-16 02:38:03 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-10-16 02:38:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:03 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 2026-10-16 02:38:03 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:02.677945 End time: 2026-10-16 02:38:02.701882 2026-10-16 02:38:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:03 INFO imstat::::casa ########################################## 2026-10-16 02:38:03 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:03 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 02:40:24.0001' ) 2026-10-16 02:38:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:03 INFO MSTransformManager::open Select data 2026-10-16 02:38:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-16 02:38:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 02:40:24.0001' successfully parsed 2026-10-16 02:38:03 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:02.715955 End time: 2026-10-16 02:38:03.132994 2026-10-16 02:38:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:03 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:03 INFO tclean::::casa ########################################## 2026-10-16 02:38:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:03 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:03 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:03 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.019129 2026-10-16 02:38:03 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:04 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:04 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:04 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:04 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:04 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:04 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:03.150340 End time: 2026-10-16 02:38:04.475550 2026-10-16 02:38:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:04 INFO tclean::::casa ########################################## 2026-10-16 02:38:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:04 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) 2026-10-16 02:38:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:04 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:04 2026****** 2026-10-16 02:38:04 INFO ImageFitter::fit+ 2026-10-16 02:38:04 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:04 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:04 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:04 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:04 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:04 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) 2026-10-16 02:38:05 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:05 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:05 INFO imstat::::casa ########################################## 2026-10-16 02:38:05 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:05 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:38:05 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:05 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:05 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:05 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:05 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:05 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:38:05 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:05 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:05 INFO imstat:::: Values --- 2026-10-16 02:38:05 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:05 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:05 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:05 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-10-16 02:38:05 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:05 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:38:05 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:05 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-16 02:38:05 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:05 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:05 INFO imstat:::: Statistics --- 2026-10-16 02:38:05 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:05 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:05 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:05 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:05 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-10-16 02:38:05 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-10-16 02:38:05 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-10-16 02:38:05 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-10-16 02:38:05 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-10-16 02:38:05 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:05 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:05 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:05 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:05 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:05 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:05 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 2026-10-16 02:38:05 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:04.514603 End time: 2026-10-16 02:38:04.533361 2026-10-16 02:38:05 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:05 INFO imstat::::casa ########################################## 2026-10-16 02:38:05 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:05 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40.100000528deg' ) 2026-10-16 02:38:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:05 INFO MSTransformManager::open Select data 2026-10-16 02:38:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40.100000528deg' successfully parsed 2026-10-16 02:38:05 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:04.544671 End time: 2026-10-16 02:38:04.870708 2026-10-16 02:38:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:05 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:05 INFO tclean::::casa ########################################## 2026-10-16 02:38:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:05 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:05 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.013786 2026-10-16 02:38:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:38:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:06 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:06 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:06 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:06 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:04.888203 End time: 2026-10-16 02:38:06.138994 2026-10-16 02:38:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:06 INFO tclean::::casa ########################################## 2026-10-16 02:38:06 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:06 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:38:06 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:06 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:06 2026****** 2026-10-16 02:38:06 INFO ImageFitter::fit+ 2026-10-16 02:38:06 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:06 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:06 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:06 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:06 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:06 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:06 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:06 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:06 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:06 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:38:06 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:06 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:06 INFO imstat::::casa ########################################## 2026-10-16 02:38:06 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:06 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:38:06 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:06 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:06 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:06 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:06 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:06 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:38:06 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:06 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:06 INFO imstat:::: Values --- 2026-10-16 02:38:06 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:06 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:06 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:06 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-16 02:38:06 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:06 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:06 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:06 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-16 02:38:06 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:06 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:06 INFO imstat:::: Statistics --- 2026-10-16 02:38:06 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:06 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:06 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:06 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:06 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-16 02:38:06 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-10-16 02:38:06 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-10-16 02:38:06 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-10-16 02:38:06 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-10-16 02:38:06 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:06 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:06 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:06 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:06 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:06 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:06 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 2026-10-16 02:38:06 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:06.175736 End time: 2026-10-16 02:38:06.193692 2026-10-16 02:38:06 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:06 INFO imstat::::casa ########################################## 2026-10-16 02:38:06 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:06 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 0.699877039rad' ) 2026-10-16 02:38:06 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:06 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:06 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:06 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:06 INFO MSTransformManager::open Select data 2026-10-16 02:38:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 0.699877039rad' successfully parsed 2026-10-16 02:38:06 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:06.204900 End time: 2026-10-16 02:38:06.523762 2026-10-16 02:38:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:07 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:07 INFO tclean::::casa ########################################## 2026-10-16 02:38:07 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:07 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:07 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:07 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:07 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:07 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:07 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:07 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:07 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:07 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:07 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:07 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009124 2026-10-16 02:38:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:38:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:08 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:08 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:08 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:08 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:08 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:06.541179 End time: 2026-10-16 02:38:07.695742 2026-10-16 02:38:08 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:08 INFO tclean::::casa ########################################## 2026-10-16 02:38:08 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:08 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:38:08 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:08 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:08 2026****** 2026-10-16 02:38:08 INFO ImageFitter::fit+ 2026-10-16 02:38:08 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:08 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:08 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:08 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:08 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:08 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:08 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:08 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:08 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:08 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:38:08 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:08 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:08 INFO imstat::::casa ########################################## 2026-10-16 02:38:08 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:08 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:38:08 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:08 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:08 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:08 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:08 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:08 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:38:08 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:08 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:08 INFO imstat:::: Values --- 2026-10-16 02:38:08 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:08 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:08 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:08 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-10-16 02:38:08 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:08 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:08 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:08 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-16 02:38:08 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:08 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:08 INFO imstat:::: Statistics --- 2026-10-16 02:38:08 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:08 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:08 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:08 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:08 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-10-16 02:38:08 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-10-16 02:38:08 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-10-16 02:38:08 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-16 02:38:08 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-10-16 02:38:08 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:08 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:08 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:08 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:08 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:08 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:08 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 2026-10-16 02:38:08 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:07.734868 End time: 2026-10-16 02:38:07.753406 2026-10-16 02:38:08 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:08 INFO imstat::::casa ########################################## 2026-10-16 02:38:08 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:08 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40d06m0.0019' ) 2026-10-16 02:38:08 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:08 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:08 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:08 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:08 INFO MSTransformManager::open Select data 2026-10-16 02:38:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40d06m0.0019' successfully parsed 2026-10-16 02:38:08 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:07.764764 End time: 2026-10-16 02:38:08.104908 2026-10-16 02:38:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:08 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:08 INFO tclean::::casa ########################################## 2026-10-16 02:38:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:08 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:08 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:08 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:08 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009195 2026-10-16 02:38:08 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:08 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:09 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:09 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:09 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:08.122374 End time: 2026-10-16 02:38:09.267393 2026-10-16 02:38:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:09 INFO tclean::::casa ########################################## 2026-10-16 02:38:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:09 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) 2026-10-16 02:38:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:09 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:09 2026****** 2026-10-16 02:38:09 INFO ImageFitter::fit+ 2026-10-16 02:38:09 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:09 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:09 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:09 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:09 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:09 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) 2026-10-16 02:38:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:09 INFO imstat::::casa ########################################## 2026-10-16 02:38:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:09 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 ) 2026-10-16 02:38:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:09 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) 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:09 INFO imstat:::: Values --- 2026-10-16 02:38:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:09 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:09 INFO imstat:::: -- minimum value [min]: -7.77984e-05 Jy/beam 2026-10-16 02:38:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-16 02:38:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:09 INFO imstat:::: Statistics --- 2026-10-16 02:38:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86704e-05 Jy/beam 2026-10-16 02:38:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7365e-05 Jy/beam 2026-10-16 02:38:09 INFO imstat:::: -- IQR [quartile]: 3.56348e-05 Jy/beam 2026-10-16 02:38:09 INFO imstat:::: -- First quartile [q1]: -3.45131e-05 Jy/beam 2026-10-16 02:38:09 INFO imstat:::: -- Third quartile [q3]: 1.12172e-06 Jy/beam 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:09 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779843e-05 4.999996e+00 2026-10-16 02:38:09 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:09.305022 End time: 2026-10-16 02:38:09.323051 2026-10-16 02:38:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:09 INFO imstat::::casa ########################################## 2026-10-16 02:38:09 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:09 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 02:40:24.0001' ) 2026-10-16 02:38:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:09 INFO MSTransformManager::open Select data 2026-10-16 02:38:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-16 02:38:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 02:40:24.0001' successfully parsed 2026-10-16 02:38:10 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:09.334714 End time: 2026-10-16 02:38:09.723110 2026-10-16 02:38:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:10 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:10 INFO tclean::::casa ########################################## 2026-10-16 02:38:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:10 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:10 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009244 2026-10-16 02:38:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:11 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:11 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:11 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:11 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:11 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:11 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:09.740543 End time: 2026-10-16 02:38:10.936925 2026-10-16 02:38:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:11 INFO tclean::::casa ########################################## 2026-10-16 02:38:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:11 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:38:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:11 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:11 2026****** 2026-10-16 02:38:11 INFO ImageFitter::fit+ 2026-10-16 02:38:11 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:11 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:11 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:11 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:11 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:11 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) 2026-10-16 02:38:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116894 Jy 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126508 Jy 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:11 INFO imstat::::casa ########################################## 2026-10-16 02:38:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:11 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:38:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:11 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:38:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:11 INFO imstat:::: Values --- 2026-10-16 02:38:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:11 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:11 INFO imstat:::: -- minimum value [min]: -7.78076e-05 Jy/beam 2026-10-16 02:38:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:38:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-16 02:38:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:11 INFO imstat:::: Statistics --- 2026-10-16 02:38:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:11 INFO imstat:::: -- Median of the pixel values [median]: -1.86848e-05 Jy/beam 2026-10-16 02:38:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73951e-05 Jy/beam 2026-10-16 02:38:11 INFO imstat:::: -- IQR [quartile]: 3.56676e-05 Jy/beam 2026-10-16 02:38:11 INFO imstat:::: -- First quartile [q1]: -3.45186e-05 Jy/beam 2026-10-16 02:38:11 INFO imstat:::: -- Third quartile [q3]: 1.14894e-06 Jy/beam 2026-10-16 02:38:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:11 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 2026-10-16 02:38:11 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:10.976719 End time: 2026-10-16 02:38:10.995503 2026-10-16 02:38:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:11 INFO imstat::::casa ########################################## 2026-10-16 02:38:11 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:11 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40.100000528deg' ) 2026-10-16 02:38:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:11 INFO MSTransformManager::open Select data 2026-10-16 02:38:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:11 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40.100000528deg' successfully parsed 2026-10-16 02:38:11 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:11.006944 End time: 2026-10-16 02:38:11.360046 2026-10-16 02:38:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:11 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:11 INFO tclean::::casa ########################################## 2026-10-16 02:38:11 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:11 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:11 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:11 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:11 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:11 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:11 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:11 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:11 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:11 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:11 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:11 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:12 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:12 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009966 2026-10-16 02:38:12 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:12 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:12 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:38:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:13 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:13 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:11.377383 End time: 2026-10-16 02:38:12.623900 2026-10-16 02:38:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:13 INFO tclean::::casa ########################################## 2026-10-16 02:38:13 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:13 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) 2026-10-16 02:38:13 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:13 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:13 2026****** 2026-10-16 02:38:13 INFO ImageFitter::fit+ 2026-10-16 02:38:13 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:13 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:13 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:13 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:13 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:13 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:13 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:13 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:13 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:13 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) 2026-10-16 02:38:13 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116882 Jy 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:13 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:13 INFO imstat::::casa ########################################## 2026-10-16 02:38:13 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:13 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 ) 2026-10-16 02:38:13 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:13 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:13 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:13 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:13 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:13 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) 2026-10-16 02:38:13 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:13 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:13 INFO imstat:::: Values --- 2026-10-16 02:38:13 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:13 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:13 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:13 INFO imstat:::: -- minimum value [min]: -7.77982e-05 Jy/beam 2026-10-16 02:38:13 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:13 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:13 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:13 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-16 02:38:13 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:13 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:13 INFO imstat:::: Statistics --- 2026-10-16 02:38:13 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:13 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:13 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:13 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:13 INFO imstat:::: -- Median of the pixel values [median]: -1.86711e-05 Jy/beam 2026-10-16 02:38:13 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73646e-05 Jy/beam 2026-10-16 02:38:13 INFO imstat:::: -- IQR [quartile]: 3.56367e-05 Jy/beam 2026-10-16 02:38:13 INFO imstat:::: -- First quartile [q1]: -3.45138e-05 Jy/beam 2026-10-16 02:38:13 INFO imstat:::: -- Third quartile [q3]: 1.12291e-06 Jy/beam 2026-10-16 02:38:13 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:13 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:13 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:13 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:13 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:13 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:13 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 2026-10-16 02:38:13 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:12.662248 End time: 2026-10-16 02:38:12.680779 2026-10-16 02:38:13 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:13 INFO imstat::::casa ########################################## 2026-10-16 02:38:13 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:13 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 5.209080451rad 0.699877039rad' ) 2026-10-16 02:38:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:13 INFO MSTransformManager::open Select data 2026-10-16 02:38:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 0.699877039rad' successfully parsed 2026-10-16 02:38:13 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:12.692223 End time: 2026-10-16 02:38:13.036331 2026-10-16 02:38:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:13 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:13 INFO tclean::::casa ########################################## 2026-10-16 02:38:13 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:13 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:13 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:13 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:13 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:13 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:13 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:13 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:13 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:13 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:13 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:13 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009374 2026-10-16 02:38:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374443277716637, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852561634033918, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:38:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:14 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:14 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:13.053644 End time: 2026-10-16 02:38:14.255303 2026-10-16 02:38:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:14 INFO tclean::::casa ########################################## 2026-10-16 02:38:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:14 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:38:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:14 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:14 2026****** 2026-10-16 02:38:14 INFO ImageFitter::fit+ 2026-10-16 02:38:14 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:14 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:14 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:14 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:14 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:14 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:38:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:14 INFO imstat::::casa ########################################## 2026-10-16 02:38:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:14 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:38:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:14 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:38:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:14 INFO imstat:::: Values --- 2026-10-16 02:38:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:14 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:14 INFO imstat:::: -- minimum value [min]: -7.77898e-05 Jy/beam 2026-10-16 02:38:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-16 02:38:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:14 INFO imstat:::: Statistics --- 2026-10-16 02:38:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86769e-05 Jy/beam 2026-10-16 02:38:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73662e-05 Jy/beam 2026-10-16 02:38:14 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-10-16 02:38:14 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-16 02:38:14 INFO imstat:::: -- Third quartile [q3]: 1.1187e-06 Jy/beam 2026-10-16 02:38:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:14 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 2026-10-16 02:38:14 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:14.294153 End time: 2026-10-16 02:38:14.312626 2026-10-16 02:38:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:14 INFO imstat::::casa ########################################## 2026-10-16 02:38:14 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:14 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 +006d21m09.7433' ) 2026-10-16 02:38:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:14 INFO MSTransformManager::open Select data 2026-10-16 02:38:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:15 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 +006d21m09.7433' successfully parsed 2026-10-16 02:38:15 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:14.324820 End time: 2026-10-16 02:38:14.672854 2026-10-16 02:38:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:15 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:15 INFO tclean::::casa ########################################## 2026-10-16 02:38:15 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:15 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:15 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:15 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:15 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:15 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:15 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:15 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:15 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:15 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:15 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:15 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009323 2026-10-16 02:38:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:15 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:17 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:14.690570 End time: 2026-10-16 02:38:16.669725 2026-10-16 02:38:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:17 INFO tclean::::casa ########################################## 2026-10-16 02:38:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:17 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) 2026-10-16 02:38:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:17 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:17 2026****** 2026-10-16 02:38:17 INFO ImageFitter::fit+ 2026-10-16 02:38:17 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:17 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:17 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:17 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:17 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:17 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) 2026-10-16 02:38:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:17 INFO imstat::::casa ########################################## 2026-10-16 02:38:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:17 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 ) 2026-10-16 02:38:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:17 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) 2026-10-16 02:38:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:17 INFO imstat:::: Values --- 2026-10-16 02:38:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:17 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:17 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-10-16 02:38:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:17 INFO imstat:::: Statistics --- 2026-10-16 02:38:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-10-16 02:38:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-10-16 02:38:17 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-10-16 02:38:17 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-10-16 02:38:17 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-10-16 02:38:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:17 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 2026-10-16 02:38:17 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:16.729450 End time: 2026-10-16 02:38:16.754716 2026-10-16 02:38:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:17 INFO imstat::::casa ########################################## 2026-10-16 02:38:17 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:17 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 00:25:24.6496' ) 2026-10-16 02:38:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:17 INFO MSTransformManager::open Select data 2026-10-16 02:38:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:18 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 ".". 2026-10-16 02:38:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 00:25:24.6496' successfully parsed 2026-10-16 02:38:18 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:16.768893 End time: 2026-10-16 02:38:17.874014 2026-10-16 02:38:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:18 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:18 INFO tclean::::casa ########################################## 2026-10-16 02:38:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:18 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:18 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:18 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:18 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017254 2026-10-16 02:38:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:20 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:20 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:20 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:20 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:21 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:21 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:17.904838 End time: 2026-10-16 02:38:20.744180 2026-10-16 02:38:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:21 INFO tclean::::casa ########################################## 2026-10-16 02:38:21 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:21 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) 2026-10-16 02:38:21 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:21 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:21 2026****** 2026-10-16 02:38:21 INFO ImageFitter::fit+ 2026-10-16 02:38:21 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:21 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:21 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:21 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:21 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:21 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:21 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:21 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:21 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:21 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) 2026-10-16 02:38:21 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:21 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:21 INFO imstat::::casa ########################################## 2026-10-16 02:38:21 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:21 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 ) 2026-10-16 02:38:21 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:21 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:21 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:21 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:21 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:21 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-16 02:38:21 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:21 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-16 02:38:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-16 02:38:21 INFO imstat:::: Values --- 2026-10-16 02:38:21 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:21 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:21 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:21 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-10-16 02:38:21 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:21 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:21 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:21 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:21 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:21 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:21 INFO imstat:::: Statistics --- 2026-10-16 02:38:21 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:21 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:21 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:21 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:21 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-10-16 02:38:21 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-10-16 02:38:21 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-10-16 02:38:21 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-10-16 02:38:21 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-10-16 02:38:21 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:21 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:21 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:21 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:21 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:21 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:21 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 2026-10-16 02:38:21 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:20.821213 End time: 2026-10-16 02:38:20.848855 2026-10-16 02:38:21 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:21 INFO imstat::::casa ########################################## 2026-10-16 02:38:21 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:21 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 6.352706472deg' ) 2026-10-16 02:38:21 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:21 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:21 INFO MSTransformManager::open Select data 2026-10-16 02:38:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 6.352706472deg' successfully parsed 2026-10-16 02:38:21 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:20.865962 End time: 2026-10-16 02:38:21.446088 2026-10-16 02:38:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:21 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:21 INFO tclean::::casa ########################################## 2026-10-16 02:38:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:21 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:21 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:21 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022769 2026-10-16 02:38:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:25 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:25 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:25 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:21.477231 End time: 2026-10-16 02:38:24.937416 2026-10-16 02:38:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:25 INFO tclean::::casa ########################################## 2026-10-16 02:38:25 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:25 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:38:25 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:25 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:25 2026****** 2026-10-16 02:38:25 INFO ImageFitter::fit+ 2026-10-16 02:38:25 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:25 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:25 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:25 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:25 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:25 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:25 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:25 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:25 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:25 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:38:25 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:25 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:25 INFO imstat::::casa ########################################## 2026-10-16 02:38:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:25 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:38:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:25 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:25 INFO imstat:::: Values --- 2026-10-16 02:38:25 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:25 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:25 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:25 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-10-16 02:38:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:25 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:25 INFO imstat:::: Statistics --- 2026-10-16 02:38:25 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:25 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:25 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:25 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-10-16 02:38:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-10-16 02:38:25 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-10-16 02:38:25 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-10-16 02:38:25 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:25 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777703e-05 4.999996e+00 2026-10-16 02:38:25 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:24.978393 End time: 2026-10-16 02:38:24.997238 2026-10-16 02:38:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:25 INFO imstat::::casa ########################################## 2026-10-16 02:38:25 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:25 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 0.110875644rad' ) 2026-10-16 02:38:25 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:25 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:25 INFO MSTransformManager::open Select data 2026-10-16 02:38:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 0.110875644rad' successfully parsed 2026-10-16 02:38:25 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:25.009049 End time: 2026-10-16 02:38:25.377639 2026-10-16 02:38:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:25 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:25 INFO tclean::::casa ########################################## 2026-10-16 02:38:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:25 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:25 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009592 2026-10-16 02:38:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:26 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:27 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:27 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:25.405363 End time: 2026-10-16 02:38:26.830250 2026-10-16 02:38:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:27 INFO tclean::::casa ########################################## 2026-10-16 02:38:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:27 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) 2026-10-16 02:38:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:27 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:27 2026****** 2026-10-16 02:38:27 INFO ImageFitter::fit+ 2026-10-16 02:38:27 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:27 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:27 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:27 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:27 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:27 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) 2026-10-16 02:38:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:27 INFO imstat::::casa ########################################## 2026-10-16 02:38:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:27 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 ) 2026-10-16 02:38:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:27 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) 2026-10-16 02:38:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:27 INFO imstat:::: Values --- 2026-10-16 02:38:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:27 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:27 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-10-16 02:38:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:38:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-16 02:38:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:27 INFO imstat:::: Statistics --- 2026-10-16 02:38:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:27 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-16 02:38:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-10-16 02:38:27 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-10-16 02:38:27 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-10-16 02:38:27 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-10-16 02:38:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:27 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 2026-10-16 02:38:27 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:26.886189 End time: 2026-10-16 02:38:26.909140 2026-10-16 02:38:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:27 INFO imstat::::casa ########################################## 2026-10-16 02:38:27 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:27 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 +006d21m09.7433' ) 2026-10-16 02:38:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:27 INFO MSTransformManager::open Select data 2026-10-16 02:38:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 +006d21m09.7433' successfully parsed 2026-10-16 02:38:27 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:27 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:26.923030 End time: 2026-10-16 02:38:27.367963 2026-10-16 02:38:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:27 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:27 INFO tclean::::casa ########################################## 2026-10-16 02:38:27 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:27 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:27 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:27 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:27 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:27 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:27 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:27 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:27 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:27 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:27 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.016192 2026-10-16 02:38:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:29 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:27.385717 End time: 2026-10-16 02:38:28.750930 2026-10-16 02:38:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:29 INFO tclean::::casa ########################################## 2026-10-16 02:38:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:29 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) 2026-10-16 02:38:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:29 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:29 2026****** 2026-10-16 02:38:29 INFO ImageFitter::fit+ 2026-10-16 02:38:29 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:29 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:29 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:29 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:29 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:29 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) 2026-10-16 02:38:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:29 INFO imstat::::casa ########################################## 2026-10-16 02:38:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:29 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 ) 2026-10-16 02:38:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:29 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) 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:29 INFO imstat:::: Values --- 2026-10-16 02:38:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:29 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:29 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-10-16 02:38:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:29 INFO imstat:::: Statistics --- 2026-10-16 02:38:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-10-16 02:38:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-10-16 02:38:29 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-10-16 02:38:29 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-10-16 02:38:29 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:29 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777946e-05 4.999996e+00 2026-10-16 02:38:29 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:28.789526 End time: 2026-10-16 02:38:28.807717 2026-10-16 02:38:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:29 INFO imstat::::casa ########################################## 2026-10-16 02:38:29 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 00:25:24.6496' ) 2026-10-16 02:38:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:29 INFO MSTransformManager::open Select data 2026-10-16 02:38:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-16 02:38:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 00:25:24.6496' successfully parsed 2026-10-16 02:38:29 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:29 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:29 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:28.818807 End time: 2026-10-16 02:38:29.326357 2026-10-16 02:38:29 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:29 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:29 INFO tclean::::casa ########################################## 2026-10-16 02:38:29 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:29 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:29 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:29 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:29 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:29 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:29 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:29 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:29 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:29 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:29 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:29 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:30 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:30 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020508 2026-10-16 02:38:30 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:30 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:31 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:29.358214 End time: 2026-10-16 02:38:31.383193 2026-10-16 02:38:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:31 INFO tclean::::casa ########################################## 2026-10-16 02:38:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:31 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) 2026-10-16 02:38:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:31 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:31 2026****** 2026-10-16 02:38:31 INFO ImageFitter::fit+ 2026-10-16 02:38:31 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:31 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:31 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:31 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:31 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:31 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) 2026-10-16 02:38:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:31 INFO imstat::::casa ########################################## 2026-10-16 02:38:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:31 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 ) 2026-10-16 02:38:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:31 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) 2026-10-16 02:38:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-16 02:38:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-16 02:38:31 INFO imstat:::: Values --- 2026-10-16 02:38:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:31 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:31 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-10-16 02:38:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:31 INFO imstat:::: Statistics --- 2026-10-16 02:38:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-10-16 02:38:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-10-16 02:38:31 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-10-16 02:38:31 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-10-16 02:38:31 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-10-16 02:38:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:31 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 2026-10-16 02:38:31 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:31.423788 End time: 2026-10-16 02:38:31.443322 2026-10-16 02:38:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:31 INFO imstat::::casa ########################################## 2026-10-16 02:38:31 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:31 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 6.352706472deg' ) 2026-10-16 02:38:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:31 INFO MSTransformManager::open Select data 2026-10-16 02:38:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 6.352706472deg' successfully parsed 2026-10-16 02:38:32 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:31.455303 End time: 2026-10-16 02:38:31.795886 2026-10-16 02:38:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:32 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:32 INFO tclean::::casa ########################################## 2026-10-16 02:38:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:32 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:32 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.015384 2026-10-16 02:38:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:32 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:32 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:32 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:33 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:33 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:31.814099 End time: 2026-10-16 02:38:33.251915 2026-10-16 02:38:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:33 INFO tclean::::casa ########################################## 2026-10-16 02:38:33 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:33 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:38:33 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:33 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:33 2026****** 2026-10-16 02:38:33 INFO ImageFitter::fit+ 2026-10-16 02:38:33 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:33 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:33 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:33 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:33 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:33 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:33 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:33 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:33 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:33 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:38:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:33 INFO imstat::::casa ########################################## 2026-10-16 02:38:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:33 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:38:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:33 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:38:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:33 INFO imstat:::: Values --- 2026-10-16 02:38:33 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:33 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:33 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:33 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-10-16 02:38:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:33 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:33 INFO imstat:::: Statistics --- 2026-10-16 02:38:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:33 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:33 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:33 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-10-16 02:38:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-10-16 02:38:33 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-10-16 02:38:33 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-10-16 02:38:33 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-10-16 02:38:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:33 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 2026-10-16 02:38:33 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:33.291901 End time: 2026-10-16 02:38:33.310700 2026-10-16 02:38:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:33 INFO imstat::::casa ########################################## 2026-10-16 02:38:33 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:33 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 0.110875644rad' ) 2026-10-16 02:38:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:33 INFO MSTransformManager::open Select data 2026-10-16 02:38:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 0.110875644rad' successfully parsed 2026-10-16 02:38:34 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:33.322260 End time: 2026-10-16 02:38:33.758836 2026-10-16 02:38:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:34 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:34 INFO tclean::::casa ########################################## 2026-10-16 02:38:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:34 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009947 2026-10-16 02:38:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:34 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:35 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:35 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:35 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:33.777359 End time: 2026-10-16 02:38:35.140545 2026-10-16 02:38:35 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:35 INFO tclean::::casa ########################################## 2026-10-16 02:38:35 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:35 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) 2026-10-16 02:38:35 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:35 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:35 2026****** 2026-10-16 02:38:35 INFO ImageFitter::fit+ 2026-10-16 02:38:35 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:35 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:35 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:35 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:35 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:35 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:35 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:35 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:35 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:35 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:38:35 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:35 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:35 INFO imstat::::casa ########################################## 2026-10-16 02:38:35 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:35 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 ) 2026-10-16 02:38:35 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:35 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:35 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:35 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:35 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:35 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) 2026-10-16 02:38:35 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:35 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:35 INFO imstat:::: Values --- 2026-10-16 02:38:35 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:35 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:35 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:35 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-10-16 02:38:35 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:35 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:38:35 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:35 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-16 02:38:35 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:35 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:35 INFO imstat:::: Statistics --- 2026-10-16 02:38:35 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:35 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:35 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:35 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:35 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-16 02:38:35 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-10-16 02:38:35 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-10-16 02:38:35 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-10-16 02:38:35 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-10-16 02:38:35 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:35 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:35 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:35 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:35 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:35 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:35 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 2026-10-16 02:38:35 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:35.205138 End time: 2026-10-16 02:38:35.231930 2026-10-16 02:38:35 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:35 INFO imstat::::casa ########################################## 2026-10-16 02:38:35 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:35 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg +006d21m09.7433' ) 2026-10-16 02:38:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:35 INFO MSTransformManager::open Select data 2026-10-16 02:38:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg +006d21m09.7433' successfully parsed 2026-10-16 02:38:35 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:35.247842 End time: 2026-10-16 02:38:35.689066 2026-10-16 02:38:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:36 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:36 INFO tclean::::casa ########################################## 2026-10-16 02:38:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:36 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:36 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009526 2026-10-16 02:38:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:37 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:37 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:37 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:37 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:37 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:37 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:35.706687 End time: 2026-10-16 02:38:36.978956 2026-10-16 02:38:37 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:37 INFO tclean::::casa ########################################## 2026-10-16 02:38:37 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:37 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:38:37 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:37 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:37 2026****** 2026-10-16 02:38:37 INFO ImageFitter::fit+ 2026-10-16 02:38:37 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:37 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:37 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:37 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:37 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:37 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:37 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:37 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:37 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:37 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:38:37 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116867 Jy 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126483 Jy 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:37 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:37 INFO imstat::::casa ########################################## 2026-10-16 02:38:37 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:37 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:38:37 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:37 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:37 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:37 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:37 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:37 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:38:37 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:37 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:37 INFO imstat:::: Values --- 2026-10-16 02:38:37 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:37 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:37 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:37 INFO imstat:::: -- minimum value [min]: -7.77768e-05 Jy/beam 2026-10-16 02:38:37 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:37 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:37 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:37 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:37 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:37 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:37 INFO imstat:::: Statistics --- 2026-10-16 02:38:37 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:37 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:37 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:37 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:37 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-10-16 02:38:37 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73609e-05 Jy/beam 2026-10-16 02:38:37 INFO imstat:::: -- IQR [quartile]: 3.56013e-05 Jy/beam 2026-10-16 02:38:37 INFO imstat:::: -- First quartile [q1]: -3.4507e-05 Jy/beam 2026-10-16 02:38:37 INFO imstat:::: -- Third quartile [q3]: 1.09435e-06 Jy/beam 2026-10-16 02:38:37 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:37 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:37 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:37 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:37 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:37 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:37 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 2026-10-16 02:38:37 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:37.020576 End time: 2026-10-16 02:38:37.041150 2026-10-16 02:38:37 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:37 INFO imstat::::casa ########################################## 2026-10-16 02:38:37 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:37 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' ) 2026-10-16 02:38:37 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:37 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:37 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:37 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:37 INFO MSTransformManager::open Select data 2026-10-16 02:38:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-16 02:38:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 00:25:24.6496' successfully parsed 2026-10-16 02:38:37 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:38 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:38 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:37.053616 End time: 2026-10-16 02:38:37.507955 2026-10-16 02:38:38 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:38 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:38 INFO tclean::::casa ########################################## 2026-10-16 02:38:38 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:38 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:38 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:38 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:38 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009303 2026-10-16 02:38:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:39 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:39 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:37.536007 End time: 2026-10-16 02:38:39.043390 2026-10-16 02:38:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:39 INFO tclean::::casa ########################################## 2026-10-16 02:38:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:39 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) 2026-10-16 02:38:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:39 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:39 2026****** 2026-10-16 02:38:39 INFO ImageFitter::fit+ 2026-10-16 02:38:39 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:39 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:39 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:39 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:39 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:39 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) 2026-10-16 02:38:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116903 Jy 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126517 Jy 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:39 INFO imstat::::casa ########################################## 2026-10-16 02:38:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:39 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 ) 2026-10-16 02:38:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:39 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-16 02:38:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-16 02:38:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-16 02:38:39 INFO imstat:::: Values --- 2026-10-16 02:38:39 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:39 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:39 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:39 INFO imstat:::: -- minimum value [min]: -7.78731e-05 Jy/beam 2026-10-16 02:38:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:39 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:39 INFO imstat:::: Statistics --- 2026-10-16 02:38:39 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:39 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:39 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:39 INFO imstat:::: -- Median of the pixel values [median]: -1.86503e-05 Jy/beam 2026-10-16 02:38:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73798e-05 Jy/beam 2026-10-16 02:38:39 INFO imstat:::: -- IQR [quartile]: 3.56966e-05 Jy/beam 2026-10-16 02:38:39 INFO imstat:::: -- First quartile [q1]: -3.45352e-05 Jy/beam 2026-10-16 02:38:39 INFO imstat:::: -- Third quartile [q3]: 1.16146e-06 Jy/beam 2026-10-16 02:38:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:39 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 2026-10-16 02:38:39 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:39.111121 End time: 2026-10-16 02:38:39.136236 2026-10-16 02:38:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:39 INFO imstat::::casa ########################################## 2026-10-16 02:38:39 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:39 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 6.352706472deg' ) 2026-10-16 02:38:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:39 INFO MSTransformManager::open Select data 2026-10-16 02:38:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 6.352706472deg' successfully parsed 2026-10-16 02:38:39 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:39.151326 End time: 2026-10-16 02:38:39.508593 2026-10-16 02:38:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:40 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:40 INFO tclean::::casa ########################################## 2026-10-16 02:38:40 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:40 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:40 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:40 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:40 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:40 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:40 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:40 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:40 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:40 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:40 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:40 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009366 2026-10-16 02:38:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:41 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:41 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:41 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:39.526197 End time: 2026-10-16 02:38:40.945106 2026-10-16 02:38:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:41 INFO tclean::::casa ########################################## 2026-10-16 02:38:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:41 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) 2026-10-16 02:38:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:41 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:41 2026****** 2026-10-16 02:38:41 INFO ImageFitter::fit+ 2026-10-16 02:38:41 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:41 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:41 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:41 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:41 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:41 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) 2026-10-16 02:38:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011687 Jy 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:41 INFO imstat::::casa ########################################## 2026-10-16 02:38:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:41 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 ) 2026-10-16 02:38:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:41 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) 2026-10-16 02:38:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:41 INFO imstat:::: Values --- 2026-10-16 02:38:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:41 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:41 INFO imstat:::: -- minimum value [min]: -7.77771e-05 Jy/beam 2026-10-16 02:38:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:41 INFO imstat:::: Statistics --- 2026-10-16 02:38:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86715e-05 Jy/beam 2026-10-16 02:38:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73619e-05 Jy/beam 2026-10-16 02:38:41 INFO imstat:::: -- IQR [quartile]: 3.56021e-05 Jy/beam 2026-10-16 02:38:41 INFO imstat:::: -- First quartile [q1]: -3.45061e-05 Jy/beam 2026-10-16 02:38:41 INFO imstat:::: -- Third quartile [q3]: 1.09605e-06 Jy/beam 2026-10-16 02:38:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:41 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 2026-10-16 02:38:41 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:40.985619 End time: 2026-10-16 02:38:41.004486 2026-10-16 02:38:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:41 INFO imstat::::casa ########################################## 2026-10-16 02:38:41 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:41 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 75.089719167deg 0.110875644rad' ) 2026-10-16 02:38:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:41 INFO MSTransformManager::open Select data 2026-10-16 02:38:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:41 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:41 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 0.110875644rad' successfully parsed 2026-10-16 02:38:41 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:41 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:41.016556 End time: 2026-10-16 02:38:41.361504 2026-10-16 02:38:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:41 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:41 INFO tclean::::casa ########################################## 2026-10-16 02:38:41 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:41 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:41 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:41 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:41 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:41 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:41 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:41 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:41 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:41 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:41 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:41 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:42 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:42 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023704 2026-10-16 02:38:42 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:42 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:43 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:43 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:43 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:41.379794 End time: 2026-10-16 02:38:42.731637 2026-10-16 02:38:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:43 INFO tclean::::casa ########################################## 2026-10-16 02:38:43 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:43 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) 2026-10-16 02:38:43 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:43 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:43 2026****** 2026-10-16 02:38:43 INFO ImageFitter::fit+ 2026-10-16 02:38:43 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:43 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:43 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:43 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:43 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:43 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:43 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:43 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:43 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) 2026-10-16 02:38:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126482 Jy 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:43 INFO imstat::::casa ########################################## 2026-10-16 02:38:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:43 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 ) 2026-10-16 02:38:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:43 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) 2026-10-16 02:38:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:43 INFO imstat:::: Values --- 2026-10-16 02:38:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:43 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:43 INFO imstat:::: -- minimum value [min]: -7.77855e-05 Jy/beam 2026-10-16 02:38:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:38:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-16 02:38:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:43 INFO imstat:::: Statistics --- 2026-10-16 02:38:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86732e-05 Jy/beam 2026-10-16 02:38:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73562e-05 Jy/beam 2026-10-16 02:38:43 INFO imstat:::: -- IQR [quartile]: 3.56008e-05 Jy/beam 2026-10-16 02:38:43 INFO imstat:::: -- First quartile [q1]: -3.45107e-05 Jy/beam 2026-10-16 02:38:43 INFO imstat:::: -- Third quartile [q3]: 1.09015e-06 Jy/beam 2026-10-16 02:38:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:43 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 2026-10-16 02:38:43 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:42.771654 End time: 2026-10-16 02:38:42.790986 2026-10-16 02:38:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:43 INFO imstat::::casa ########################################## 2026-10-16 02:38:43 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad +006d21m09.7433' ) 2026-10-16 02:38:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:43 INFO MSTransformManager::open Select data 2026-10-16 02:38:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:43 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:43 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad +006d21m09.7433' successfully parsed 2026-10-16 02:38:43 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:42.803125 End time: 2026-10-16 02:38:43.193359 2026-10-16 02:38:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:43 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:43 INFO tclean::::casa ########################################## 2026-10-16 02:38:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:43 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:43 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:44 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:44 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.013281 2026-10-16 02:38:44 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:44 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:44 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:45 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:45 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:43.227868 End time: 2026-10-16 02:38:44.813107 2026-10-16 02:38:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:45 INFO tclean::::casa ########################################## 2026-10-16 02:38:45 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:45 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:38:45 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:45 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:45 2026****** 2026-10-16 02:38:45 INFO ImageFitter::fit+ 2026-10-16 02:38:45 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:45 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:45 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:45 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:45 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:45 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:45 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:45 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:45 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:45 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:38:45 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:45 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:45 INFO imstat::::casa ########################################## 2026-10-16 02:38:45 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:45 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:38:45 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:45 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:45 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:45 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:45 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:45 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:38:45 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:45 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:45 INFO imstat:::: Values --- 2026-10-16 02:38:45 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:45 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:45 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:45 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-16 02:38:45 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:45 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:45 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:45 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:45 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:45 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:45 INFO imstat:::: Statistics --- 2026-10-16 02:38:45 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:45 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:45 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:45 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:45 INFO imstat:::: -- Median of the pixel values [median]: -1.86669e-05 Jy/beam 2026-10-16 02:38:45 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73635e-05 Jy/beam 2026-10-16 02:38:45 INFO imstat:::: -- IQR [quartile]: 3.56081e-05 Jy/beam 2026-10-16 02:38:45 INFO imstat:::: -- First quartile [q1]: -3.45085e-05 Jy/beam 2026-10-16 02:38:45 INFO imstat:::: -- Third quartile [q3]: 1.09959e-06 Jy/beam 2026-10-16 02:38:45 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:45 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:45 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:45 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:45 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:45 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:45 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 2026-10-16 02:38:45 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:44.854434 End time: 2026-10-16 02:38:44.875134 2026-10-16 02:38:45 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:45 INFO imstat::::casa ########################################## 2026-10-16 02:38:45 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:45 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 00:25:24.6496' ) 2026-10-16 02:38:45 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:45 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:45 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:45 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:45 INFO MSTransformManager::open Select data 2026-10-16 02:38:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-16 02:38:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 00:25:24.6496' successfully parsed 2026-10-16 02:38:45 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:44.887462 End time: 2026-10-16 02:38:45.316106 2026-10-16 02:38:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:45 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:45 INFO tclean::::casa ########################################## 2026-10-16 02:38:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:45 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010118 2026-10-16 02:38:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:46 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:38:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:47 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:45.335829 End time: 2026-10-16 02:38:46.660649 2026-10-16 02:38:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:47 INFO tclean::::casa ########################################## 2026-10-16 02:38:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:47 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) 2026-10-16 02:38:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:47 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:47 2026****** 2026-10-16 02:38:47 INFO ImageFitter::fit+ 2026-10-16 02:38:47 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:47 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:47 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:47 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:47 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:47 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) 2026-10-16 02:38:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116905 Jy 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000041 +/- 0.000777 arcsec 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- ra: 127.999941 +/- 0.000127 pixels 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- dec: 127.999954 +/- 0.000097 pixels 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:47 INFO imstat::::casa ########################################## 2026-10-16 02:38:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:47 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 ) 2026-10-16 02:38:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:47 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) 2026-10-16 02:38:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-16 02:38:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-16 02:38:47 INFO imstat:::: Values --- 2026-10-16 02:38:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:47 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:47 INFO imstat:::: -- minimum value [min]: -7.78774e-05 Jy/beam 2026-10-16 02:38:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:47 INFO imstat:::: Statistics --- 2026-10-16 02:38:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86532e-05 Jy/beam 2026-10-16 02:38:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73779e-05 Jy/beam 2026-10-16 02:38:47 INFO imstat:::: -- IQR [quartile]: 3.5701e-05 Jy/beam 2026-10-16 02:38:47 INFO imstat:::: -- First quartile [q1]: -3.45356e-05 Jy/beam 2026-10-16 02:38:47 INFO imstat:::: -- Third quartile [q3]: 1.16544e-06 Jy/beam 2026-10-16 02:38:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:47 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 2026-10-16 02:38:47 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:46.702481 End time: 2026-10-16 02:38:46.721183 2026-10-16 02:38:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:47 INFO imstat::::casa ########################################## 2026-10-16 02:38:47 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 6.352706472deg' ) 2026-10-16 02:38:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:47 INFO MSTransformManager::open Select data 2026-10-16 02:38:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 6.352706472deg' successfully parsed 2026-10-16 02:38:47 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:47 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:46.732807 End time: 2026-10-16 02:38:47.172629 2026-10-16 02:38:47 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:47 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:47 INFO tclean::::casa ########################################## 2026-10-16 02:38:47 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:47 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:47 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:47 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:47 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:47 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:47 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:47 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:47 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:47 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:47 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:47 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009502 2026-10-16 02:38:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:38:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:48 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:48 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:48 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:48 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:48 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:48 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:47.208981 End time: 2026-10-16 02:38:48.439822 2026-10-16 02:38:48 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:48 INFO tclean::::casa ########################################## 2026-10-16 02:38:48 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:48 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:38:48 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:48 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:48 2026****** 2026-10-16 02:38:48 INFO ImageFitter::fit+ 2026-10-16 02:38:48 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:48 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:48 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:48 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:48 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:48 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:48 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:48 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:48 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:48 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:38:48 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:48 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:48 INFO imstat::::casa ########################################## 2026-10-16 02:38:48 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:48 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:38:48 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:48 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:48 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:48 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:48 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:48 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:38:48 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:48 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:48 INFO imstat:::: Values --- 2026-10-16 02:38:48 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:48 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:48 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:48 INFO imstat:::: -- minimum value [min]: -7.77798e-05 Jy/beam 2026-10-16 02:38:48 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:48 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:48 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:48 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:48 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:48 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:48 INFO imstat:::: Statistics --- 2026-10-16 02:38:48 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:48 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:48 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:48 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:48 INFO imstat:::: -- Median of the pixel values [median]: -1.86675e-05 Jy/beam 2026-10-16 02:38:48 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73645e-05 Jy/beam 2026-10-16 02:38:48 INFO imstat:::: -- IQR [quartile]: 3.56077e-05 Jy/beam 2026-10-16 02:38:48 INFO imstat:::: -- First quartile [q1]: -3.45073e-05 Jy/beam 2026-10-16 02:38:48 INFO imstat:::: -- Third quartile [q3]: 1.1004e-06 Jy/beam 2026-10-16 02:38:48 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:48 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:48 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:48 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:48 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:48 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:48 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 2026-10-16 02:38:48 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:48.478390 End time: 2026-10-16 02:38:48.496543 2026-10-16 02:38:48 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:48 INFO imstat::::casa ########################################## 2026-10-16 02:38:49 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 0.110875644rad' ) 2026-10-16 02:38:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:49 INFO MSTransformManager::open Select data 2026-10-16 02:38:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 0.110875644rad' successfully parsed 2026-10-16 02:38:49 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:48.507885 End time: 2026-10-16 02:38:48.892690 2026-10-16 02:38:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:49 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:49 INFO tclean::::casa ########################################## 2026-10-16 02:38:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:49 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:49 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009601 2026-10-16 02:38:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:50 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:50 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:48.922279 End time: 2026-10-16 02:38:50.289341 2026-10-16 02:38:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:50 INFO tclean::::casa ########################################## 2026-10-16 02:38:50 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:50 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:38:50 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:50 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:50 2026****** 2026-10-16 02:38:50 INFO ImageFitter::fit+ 2026-10-16 02:38:50 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:50 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:50 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:50 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:50 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:50 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:50 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:50 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:50 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:38:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000002 +/- 0.000777 arcsec 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- ra: 128.000014 +/- 0.000127 pixels 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- dec: 127.999998 +/- 0.000097 pixels 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:50 INFO imstat::::casa ########################################## 2026-10-16 02:38:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:50 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:38:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:50 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:38:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:50 INFO imstat:::: Values --- 2026-10-16 02:38:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:50 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:50 INFO imstat:::: -- minimum value [min]: -7.77816e-05 Jy/beam 2026-10-16 02:38:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:38:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-16 02:38:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:50 INFO imstat:::: Statistics --- 2026-10-16 02:38:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:50 INFO imstat:::: -- Median of the pixel values [median]: -1.8676e-05 Jy/beam 2026-10-16 02:38:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73584e-05 Jy/beam 2026-10-16 02:38:50 INFO imstat:::: -- IQR [quartile]: 3.56038e-05 Jy/beam 2026-10-16 02:38:50 INFO imstat:::: -- First quartile [q1]: -3.45104e-05 Jy/beam 2026-10-16 02:38:50 INFO imstat:::: -- Third quartile [q3]: 1.09331e-06 Jy/beam 2026-10-16 02:38:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:50 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 2026-10-16 02:38:50 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:50.346590 End time: 2026-10-16 02:38:50.369557 2026-10-16 02:38:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:50 INFO imstat::::casa ########################################## 2026-10-16 02:38:50 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:50 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39d58m05.8512' ) 2026-10-16 02:38:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:50 INFO MSTransformManager::open Select data 2026-10-16 02:38:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39d58m05.8512' successfully parsed 2026-10-16 02:38:51 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:50.384083 End time: 2026-10-16 02:38:50.790583 2026-10-16 02:38:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:51 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:51 INFO tclean::::casa ########################################## 2026-10-16 02:38:51 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:51 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:51 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:51 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.010091 2026-10-16 02:38:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:38:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:52 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:52 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:50.820714 End time: 2026-10-16 02:38:52.039188 2026-10-16 02:38:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:52 INFO tclean::::casa ########################################## 2026-10-16 02:38:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:52 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) 2026-10-16 02:38:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:52 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:52 2026****** 2026-10-16 02:38:52 INFO ImageFitter::fit+ 2026-10-16 02:38:52 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:52 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:52 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:52 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:52 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:52 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) 2026-10-16 02:38:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:52 INFO imstat::::casa ########################################## 2026-10-16 02:38:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:52 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 ) 2026-10-16 02:38:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:52 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) 2026-10-16 02:38:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:52 INFO imstat:::: Values --- 2026-10-16 02:38:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:52 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:52 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-16 02:38:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:52 INFO imstat:::: Statistics --- 2026-10-16 02:38:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-16 02:38:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-16 02:38:52 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-16 02:38:52 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-16 02:38:52 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-16 02:38:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:52 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 2026-10-16 02:38:52 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:52.078386 End time: 2026-10-16 02:38:52.097732 2026-10-16 02:38:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:52 INFO imstat::::casa ########################################## 2026-10-16 02:38:52 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:52 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 02:39:52.3901' ) 2026-10-16 02:38:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:52 INFO MSTransformManager::open Select data 2026-10-16 02:38:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-16 02:38:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 02:39:52.3901' successfully parsed 2026-10-16 02:38:52 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:52.109571 End time: 2026-10-16 02:38:52.503837 2026-10-16 02:38:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:53 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:53 INFO tclean::::casa ########################################## 2026-10-16 02:38:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:53 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021764 2026-10-16 02:38:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:54 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:54 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:54 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:54 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:54 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:52.521227 End time: 2026-10-16 02:38:53.951865 2026-10-16 02:38:54 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:54 INFO tclean::::casa ########################################## 2026-10-16 02:38:54 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:54 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:38:54 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:54 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:54 2026****** 2026-10-16 02:38:54 INFO ImageFitter::fit+ 2026-10-16 02:38:54 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:54 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:54 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:54 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:54 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:54 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:54 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:54 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:54 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:54 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:38:54 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:54 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:54 INFO imstat::::casa ########################################## 2026-10-16 02:38:54 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:54 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:38:54 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:54 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:54 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:54 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:54 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:54 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) 2026-10-16 02:38:54 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:54 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-16 02:38:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-16 02:38:54 INFO imstat:::: Values --- 2026-10-16 02:38:54 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:54 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:54 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:54 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-10-16 02:38:54 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:54 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:54 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:54 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:54 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:54 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:54 INFO imstat:::: Statistics --- 2026-10-16 02:38:54 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:54 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:54 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:54 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:54 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-10-16 02:38:54 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-10-16 02:38:54 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-10-16 02:38:54 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-10-16 02:38:54 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-10-16 02:38:54 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:54 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:54 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:54 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:54 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:54 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:54 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 2026-10-16 02:38:54 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:54.005391 End time: 2026-10-16 02:38:54.027581 2026-10-16 02:38:54 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:54 INFO imstat::::casa ########################################## 2026-10-16 02:38:54 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:54 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:54 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39.968292000deg' ) 2026-10-16 02:38:54 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:54 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:54 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:54 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:54 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:54 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:54 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:54 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:54 INFO MSTransformManager::open Select data 2026-10-16 02:38:54 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39.968292000deg' successfully parsed 2026-10-16 02:38:54 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:54.040013 End time: 2026-10-16 02:38:54.470420 2026-10-16 02:38:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:54 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:54 INFO tclean::::casa ########################################## 2026-10-16 02:38:54 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:55 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:55 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:55 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:55 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:55 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:55 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:55 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:55 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:55 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:55 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:55 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.013428 2026-10-16 02:38:55 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:55 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:55 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:38:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:56 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:56 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:54.499811 End time: 2026-10-16 02:38:55.929038 2026-10-16 02:38:56 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:56 INFO tclean::::casa ########################################## 2026-10-16 02:38:56 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:56 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) 2026-10-16 02:38:56 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:56 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:56 2026****** 2026-10-16 02:38:56 INFO ImageFitter::fit+ 2026-10-16 02:38:56 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:56 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:56 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:56 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:56 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:56 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:56 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:56 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:56 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:56 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) 2026-10-16 02:38:56 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:56 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:56 INFO imstat::::casa ########################################## 2026-10-16 02:38:56 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:56 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 ) 2026-10-16 02:38:56 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:56 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:56 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:56 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:56 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:56 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) 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:56 INFO imstat:::: Values --- 2026-10-16 02:38:56 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:56 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:56 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:56 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-16 02:38:56 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:56 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:56 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:56 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:56 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:56 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:56 INFO imstat:::: Statistics --- 2026-10-16 02:38:56 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:56 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:56 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:56 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:56 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-16 02:38:56 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-16 02:38:56 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-16 02:38:56 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-16 02:38:56 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:56 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-10-16 02:38:56 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:55.995206 End time: 2026-10-16 02:38:56.021109 2026-10-16 02:38:56 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:56 INFO imstat::::casa ########################################## 2026-10-16 02:38:56 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:56 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 0.697578292rad' ) 2026-10-16 02:38:56 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:56 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:56 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:56 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:56 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:56 INFO MSTransformManager::open Select data 2026-10-16 02:38:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 0.697578292rad' successfully parsed 2026-10-16 02:38:56 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:56.035921 End time: 2026-10-16 02:38:56.462899 2026-10-16 02:38:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:56 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:56 INFO tclean::::casa ########################################## 2026-10-16 02:38:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:56 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009204 2026-10-16 02:38:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:57 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:38:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:38:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:38:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:38:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:38:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:38:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:38:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:38:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:38:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:38:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:38:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:38:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:38:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:38:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:38:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:58 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:38:58 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:56.480011 End time: 2026-10-16 02:38:58.151595 2026-10-16 02:38:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:38:58 INFO tclean::::casa ########################################## 2026-10-16 02:38:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:38:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:58 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) 2026-10-16 02:38:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:38:58 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:38:58 2026****** 2026-10-16 02:38:58 INFO ImageFitter::fit+ 2026-10-16 02:38:58 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:38:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:38:58 INFO ImageFitter::fit+ --- region: 2026-10-16 02:38:58 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:38:58 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:38:58 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:38:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:38:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:38:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:38:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:58 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) 2026-10-16 02:38:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:38:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:38:58 INFO imstat::::casa ########################################## 2026-10-16 02:38:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:38:58 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 ) 2026-10-16 02:38:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:38:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:38:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:38:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:38:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:38:58 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) 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:38:58 INFO imstat:::: Values --- 2026-10-16 02:38:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:38:58 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:38:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:38:58 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-10-16 02:38:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:38:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:38:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:38:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:38:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:38:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:38:58 INFO imstat:::: Statistics --- 2026-10-16 02:38:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:38:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:38:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:38:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:38:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-10-16 02:38:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-10-16 02:38:58 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-10-16 02:38:58 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-10-16 02:38:58 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:38:58 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778897e-05 4.999996e+00 2026-10-16 02:38:58 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:38:58.189607 End time: 2026-10-16 02:38:58.207920 2026-10-16 02:38:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:38:58 INFO imstat::::casa ########################################## 2026-10-16 02:38:58 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:38:58 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39d58m05.8512' ) 2026-10-16 02:38:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:38:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:38:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:38:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:38:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:38:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:38:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:38:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:38:58 INFO MSTransformManager::open Select data 2026-10-16 02:38:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:38:58 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:38:58 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39d58m05.8512' successfully parsed 2026-10-16 02:38:58 INFO phaseshift::::casa Shift phase center 2026-10-16 02:38:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:38:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:38:58.219693 End time: 2026-10-16 02:38:58.623412 2026-10-16 02:38:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:38:59 INFO phaseshift::::casa ########################################## 2026-10-16 02:38:59 INFO tclean::::casa ########################################## 2026-10-16 02:38:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:38:59 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:38:59 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:38:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:38:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:38:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:38:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:38:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:38:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:38:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:38:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:38:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:38:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:38:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:38:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021416 2026-10-16 02:38:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:38:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:38:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:38:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:38:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:38:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:38:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:38:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:38:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:38:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:38:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:38:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:38:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:38:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:38:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:38:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:38:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:39:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:39:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:39:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:39:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:39:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:39:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:39:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:39:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:39:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:39:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:39:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:39:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:39:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:39:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:39:00 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:00 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:39:00 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:38:58.640771 End time: 2026-10-16 02:39:00.000684 2026-10-16 02:39:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:39:00 INFO tclean::::casa ########################################## 2026-10-16 02:39:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:39:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:00 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:39:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:39:00 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:39:00 2026****** 2026-10-16 02:39:00 INFO ImageFitter::fit+ 2026-10-16 02:39:00 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:39:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:39:00 INFO ImageFitter::fit+ --- region: 2026-10-16 02:39:00 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:39:00 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:39:00 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:39:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:39:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:39:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:39:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:00 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:39:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:39:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:39:00 INFO imstat::::casa ########################################## 2026-10-16 02:39:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:39:00 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:39:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:39:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:39:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:39:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:39:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:00 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:39:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:39:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:39:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:39:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:39:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:39:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:39:00 INFO imstat:::: Values --- 2026-10-16 02:39:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:39:00 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:39:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:39:00 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-10-16 02:39:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:39:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:39:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:39:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-16 02:39:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:39:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:39:00 INFO imstat:::: Statistics --- 2026-10-16 02:39:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:39:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:39:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:39:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:39:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-10-16 02:39:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-10-16 02:39:00 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-10-16 02:39:00 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-10-16 02:39:00 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-10-16 02:39:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:39:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:39:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:39:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:39:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:39:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:39:00 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 2026-10-16 02:39:00 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:39:00.043945 End time: 2026-10-16 02:39:00.069484 2026-10-16 02:39:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:39:00 INFO imstat::::casa ########################################## 2026-10-16 02:39:00 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:39:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 02:39:52.3901' ) 2026-10-16 02:39:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:39:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:39:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:39:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:39:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:39:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:39:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:39:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:39:00 INFO MSTransformManager::open Select data 2026-10-16 02:39:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:39:00 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 ".". 2026-10-16 02:39:00 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 02:39:52.3901' successfully parsed 2026-10-16 02:39:00 INFO phaseshift::::casa Shift phase center 2026-10-16 02:39:00 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:39:00 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:39:00.081398 End time: 2026-10-16 02:39:00.451147 2026-10-16 02:39:00 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:39:00 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:00 INFO tclean::::casa ########################################## 2026-10-16 02:39:00 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:39:00 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:39:00 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:39:01 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:39:01 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:39:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:01 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:39:01 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:39:01 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:39:01 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:39:01 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:39:01 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:39:01 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:39:01 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:39:01 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01247 2026-10-16 02:39:01 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:01 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:39:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:39:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:39:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:39:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:39:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:39:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:39:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:39:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:39:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:39:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:39:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:39:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:39:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:39:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:39:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:39:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:39:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:39:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:39:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:39:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:39:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:39:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:39:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:39:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:39:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:39:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:39:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:39:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:39:02 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:02 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:39:02 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:39:00.489464 End time: 2026-10-16 02:39:01.858009 2026-10-16 02:39:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:39:02 INFO tclean::::casa ########################################## 2026-10-16 02:39:02 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:39:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:02 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) 2026-10-16 02:39:02 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:39:02 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:39:02 2026****** 2026-10-16 02:39:02 INFO ImageFitter::fit+ 2026-10-16 02:39:02 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:39:02 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:39:02 INFO ImageFitter::fit+ --- region: 2026-10-16 02:39:02 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:39:02 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:39:02 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:39:02 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:39:02 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:39:02 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:39:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:02 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) 2026-10-16 02:39:02 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- ra: 128.000008 +/- 0.000127 pixels 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:39:02 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:39:02 INFO imstat::::casa ########################################## 2026-10-16 02:39:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:39:02 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 ) 2026-10-16 02:39:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:39:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:39:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:39:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:39:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:02 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) 2026-10-16 02:39:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:39:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:39:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:39:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:39:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-16 02:39:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-16 02:39:02 INFO imstat:::: Values --- 2026-10-16 02:39:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:39:02 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:39:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:39:02 INFO imstat:::: -- minimum value [min]: -7.78143e-05 Jy/beam 2026-10-16 02:39:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:39:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:39:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:39:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:39:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:39:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:39:02 INFO imstat:::: Statistics --- 2026-10-16 02:39:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:39:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:39:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:39:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:39:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86838e-05 Jy/beam 2026-10-16 02:39:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73769e-05 Jy/beam 2026-10-16 02:39:02 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-10-16 02:39:02 INFO imstat:::: -- First quartile [q1]: -3.45216e-05 Jy/beam 2026-10-16 02:39:02 INFO imstat:::: -- Third quartile [q3]: 1.1124e-06 Jy/beam 2026-10-16 02:39:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:39:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:39:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:39:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:39:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:39:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:39:02 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 2026-10-16 02:39:02 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:39:01.930798 End time: 2026-10-16 02:39:01.959228 2026-10-16 02:39:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:39:02 INFO imstat::::casa ########################################## 2026-10-16 02:39:02 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:39:02 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 39.968292000deg' ) 2026-10-16 02:39:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:39:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:39:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:39:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:39:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:39:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:39:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:39:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:39:02 INFO MSTransformManager::open Select data 2026-10-16 02:39:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:39:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:39:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39.968292000deg' successfully parsed 2026-10-16 02:39:02 INFO phaseshift::::casa Shift phase center 2026-10-16 02:39:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:39:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:39:01.976309 End time: 2026-10-16 02:39:02.412200 2026-10-16 02:39:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:39:02 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:02 INFO tclean::::casa ########################################## 2026-10-16 02:39:02 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:39:02 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:39:02 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:39:02 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:39:02 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:39:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:39:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:39:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:39:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:39:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:39:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:39:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:39:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:39:03 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009401 2026-10-16 02:39:03 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:39:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:39:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:39:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:39:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:39:03 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:39:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:39:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:39:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:39:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:39:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:39:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:39:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:39:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:39:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:39:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:39:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:39:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:39:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:39:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:39:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:39:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:39:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:39:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:39:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:39:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:39:04 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:39:04 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:39:04 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:39:04 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:04 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:39:04 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:39:02.429628 End time: 2026-10-16 02:39:03.720257 2026-10-16 02:39:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:39:04 INFO tclean::::casa ########################################## 2026-10-16 02:39:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:39:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:04 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:39:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:39:04 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:39:04 2026****** 2026-10-16 02:39:04 INFO ImageFitter::fit+ 2026-10-16 02:39:04 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:39:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:39:04 INFO ImageFitter::fit+ --- region: 2026-10-16 02:39:04 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:39:04 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:39:04 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:39:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:39:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:39:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:39:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:04 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:39:04 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:39:04 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:39:04 INFO imstat::::casa ########################################## 2026-10-16 02:39:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:39:04 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:39:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:39:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:39:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:39:04 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:39:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:04 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:39:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:39:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:39:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:39:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:39:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:39:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:39:04 INFO imstat:::: Values --- 2026-10-16 02:39:04 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:39:04 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:39:04 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:39:04 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-10-16 02:39:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:39:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-16 02:39:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:39:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-16 02:39:04 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:39:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:39:04 INFO imstat:::: Statistics --- 2026-10-16 02:39:04 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:39:04 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:39:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:39:04 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:39:04 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-10-16 02:39:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-10-16 02:39:04 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-10-16 02:39:04 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-10-16 02:39:04 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-10-16 02:39:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:39:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:39:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:39:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:39:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:39:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:39:04 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 2026-10-16 02:39:04 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:39:03.760123 End time: 2026-10-16 02:39:03.779088 2026-10-16 02:39:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:39:04 INFO imstat::::casa ########################################## 2026-10-16 02:39:04 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:39:04 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 0.697578292rad' ) 2026-10-16 02:39:04 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:39:04 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:39:04 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:39:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:39:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:39:04 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:39:04 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:39:04 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:39:04 INFO MSTransformManager::open Select data 2026-10-16 02:39:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:39:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:39:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 0.697578292rad' successfully parsed 2026-10-16 02:39:04 INFO phaseshift::::casa Shift phase center 2026-10-16 02:39:04 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:39:04 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:39:03.791162 End time: 2026-10-16 02:39:04.246232 2026-10-16 02:39:04 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:39:04 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:04 INFO tclean::::casa ########################################## 2026-10-16 02:39:04 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:39:04 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:39:04 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:39:04 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:39:04 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:39:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:04 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:39:04 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:39:04 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:39:04 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:39:04 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:39:04 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:39:04 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:39:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:39:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009242 2026-10-16 02:39:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:39:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:39:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:39:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:39:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:39:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:39:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:39:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:39:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:39:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:39:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:39:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:39:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:39:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:39:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:39:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:39:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:39:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:39:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:39:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:39:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:39:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:39:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:39:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:39:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:39:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:39:06 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:39:06 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:39:06 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:39:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:39:06 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:39:04.275498 End time: 2026-10-16 02:39:05.804192 2026-10-16 02:39:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:39:06 INFO tclean::::casa ########################################## 2026-10-16 02:39:06 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:39:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:06 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:39:06 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:39:06 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:39:06 2026****** 2026-10-16 02:39:06 INFO ImageFitter::fit+ 2026-10-16 02:39:06 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:39:06 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:39:06 INFO ImageFitter::fit+ --- region: 2026-10-16 02:39:06 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:39:06 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:39:06 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:39:06 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:39:06 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:39:06 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:39:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:06 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:39:06 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:39:06 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:39:06 INFO imstat::::casa ########################################## 2026-10-16 02:39:06 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:39:06 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:39:06 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:39:06 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:39:06 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:39:06 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:39:06 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:06 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:39:06 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:39:06 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:39:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:39:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:39:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:39:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:39:06 INFO imstat:::: Values --- 2026-10-16 02:39:06 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:39:06 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:39:06 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:39:06 INFO imstat:::: -- minimum value [min]: -7.7781e-05 Jy/beam 2026-10-16 02:39:06 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:39:06 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:39:06 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:39:06 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:39:06 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:39:06 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:39:06 INFO imstat:::: Statistics --- 2026-10-16 02:39:06 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:39:06 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:39:06 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:39:06 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:39:06 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-10-16 02:39:06 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73593e-05 Jy/beam 2026-10-16 02:39:06 INFO imstat:::: -- IQR [quartile]: 3.56161e-05 Jy/beam 2026-10-16 02:39:06 INFO imstat:::: -- First quartile [q1]: -3.45125e-05 Jy/beam 2026-10-16 02:39:06 INFO imstat:::: -- Third quartile [q3]: 1.10364e-06 Jy/beam 2026-10-16 02:39:06 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:39:06 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:39:06 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:39:06 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:39:06 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:39:06 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:39:06 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 2026-10-16 02:39:06 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:39:05.862040 End time: 2026-10-16 02:39:05.885566 2026-10-16 02:39:06 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:39:06 INFO imstat::::casa ########################################## 2026-10-16 02:39:06 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:39:06 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39d58m05.8512' ) 2026-10-16 02:39:06 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:39:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:39:06 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:39:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:39:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:39:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:39:06 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:39:06 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:39:06 INFO MSTransformManager::open Select data 2026-10-16 02:39:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:39:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:39:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39d58m05.8512' successfully parsed 2026-10-16 02:39:06 INFO phaseshift::::casa Shift phase center 2026-10-16 02:39:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:39:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:39:05.899709 End time: 2026-10-16 02:39:06.298718 2026-10-16 02:39:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:39:06 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:06 INFO tclean::::casa ########################################## 2026-10-16 02:39:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:39:06 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:39:06 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:39:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:39:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:39:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:39:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:39:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:39:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:39:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:39:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:39:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:39:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:39:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009424 2026-10-16 02:39:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:39:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:39:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:39:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:39:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:39:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:39:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:39:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:39:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:39:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:39:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:39:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:39:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:39:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:39:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:39:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:39:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:39:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:39:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:39:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:39:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:39:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:39:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:39:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:39:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:39:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:39:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:39:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:39:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:39:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:08 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:39:08 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:39:06.329492 End time: 2026-10-16 02:39:07.601317 2026-10-16 02:39:08 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:39:08 INFO tclean::::casa ########################################## 2026-10-16 02:39:08 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:39:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:08 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:39:08 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:39:08 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:39:08 2026****** 2026-10-16 02:39:08 INFO ImageFitter::fit+ 2026-10-16 02:39:08 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:39:08 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:39:08 INFO ImageFitter::fit+ --- region: 2026-10-16 02:39:08 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:39:08 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:39:08 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:39:08 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:39:08 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:39:08 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:39:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:08 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:39:08 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:39:08 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:39:08 INFO imstat::::casa ########################################## 2026-10-16 02:39:08 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:39:08 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:39:08 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:39:08 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:39:08 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:39:08 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:39:08 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:08 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:39:08 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:39:08 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:39:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:39:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:39:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:39:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:39:08 INFO imstat:::: Values --- 2026-10-16 02:39:08 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:39:08 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:39:08 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:39:08 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-16 02:39:08 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:39:08 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:39:08 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:39:08 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:39:08 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:39:08 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:39:08 INFO imstat:::: Statistics --- 2026-10-16 02:39:08 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:39:08 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:39:08 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:39:08 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:39:08 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-16 02:39:08 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-16 02:39:08 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-16 02:39:08 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-16 02:39:08 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-16 02:39:08 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:39:08 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:39:08 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:39:08 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:39:08 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:39:08 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:39:08 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 2026-10-16 02:39:08 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:39:07.640109 End time: 2026-10-16 02:39:07.658705 2026-10-16 02:39:08 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:39:08 INFO imstat::::casa ########################################## 2026-10-16 02:39:08 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:39:08 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 02:39:52.3901' ) 2026-10-16 02:39:08 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:39:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:39:08 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:39:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:39:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:39:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:39:08 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:39:08 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:39:08 INFO MSTransformManager::open Select data 2026-10-16 02:39:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:39:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-16 02:39:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 02:39:52.3901' successfully parsed 2026-10-16 02:39:08 INFO phaseshift::::casa Shift phase center 2026-10-16 02:39:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:39:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:39:07.670120 End time: 2026-10-16 02:39:08.122565 2026-10-16 02:39:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:39:08 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:08 INFO tclean::::casa ########################################## 2026-10-16 02:39:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:39:08 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:39:08 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:39:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:39:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:39:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:39:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:39:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:39:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:39:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:39:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:39:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:39:08 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:39:08 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017461 2026-10-16 02:39:08 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:08 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:39:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:39:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:39:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:39:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:39:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:39:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:39:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:39:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:39:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:39:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:39:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:39:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:39:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:39:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:39:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:39:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:39:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:39:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:39:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:39:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:39:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:39:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:39:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:39:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:39:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:39:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:39:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:39:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:39:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:10 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:39:10 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:39:08.140079 End time: 2026-10-16 02:39:09.624665 2026-10-16 02:39:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:39:10 INFO tclean::::casa ########################################## 2026-10-16 02:39:10 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:39:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:10 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) 2026-10-16 02:39:10 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:39:10 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:39:10 2026****** 2026-10-16 02:39:10 INFO ImageFitter::fit+ 2026-10-16 02:39:10 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:39:10 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:39:10 INFO ImageFitter::fit+ --- region: 2026-10-16 02:39:10 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:39:10 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:39:10 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:39:10 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:39:10 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:39:10 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:39:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:10 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) 2026-10-16 02:39:10 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:39:10 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:39:10 INFO imstat::::casa ########################################## 2026-10-16 02:39:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:39:10 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 ) 2026-10-16 02:39:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:39:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:39:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:39:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:39:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:10 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) 2026-10-16 02:39:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:39:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:39:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:39:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:39:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-16 02:39:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-16 02:39:10 INFO imstat:::: Values --- 2026-10-16 02:39:10 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:39:10 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:39:10 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:39:10 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-10-16 02:39:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:39:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:39:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:39:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:39:10 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:39:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:39:10 INFO imstat:::: Statistics --- 2026-10-16 02:39:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:39:10 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:39:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:39:10 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:39:10 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-10-16 02:39:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-10-16 02:39:10 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-10-16 02:39:10 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-10-16 02:39:10 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-10-16 02:39:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:39:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:39:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:39:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:39:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:39:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:39:10 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 2026-10-16 02:39:10 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:39:09.662129 End time: 2026-10-16 02:39:09.680517 2026-10-16 02:39:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:39:10 INFO imstat::::casa ########################################## 2026-10-16 02:39:10 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:39:10 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39.968292000deg' ) 2026-10-16 02:39:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:39:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:39:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:39:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:39:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:39:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:39:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:39:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:39:10 INFO MSTransformManager::open Select data 2026-10-16 02:39:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:39:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:39:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39.968292000deg' successfully parsed 2026-10-16 02:39:10 INFO phaseshift::::casa Shift phase center 2026-10-16 02:39:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:39:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:39:09.691811 End time: 2026-10-16 02:39:10.121002 2026-10-16 02:39:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:39:10 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:10 INFO tclean::::casa ########################################## 2026-10-16 02:39:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:39:10 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:39:10 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:39:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:39:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:39:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:39:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:39:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:39:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:39:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:39:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:39:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:39:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:39:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.014494 2026-10-16 02:39:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:39:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:39:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:39:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:39:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:39:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:39:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:39:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:39:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:39:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:39:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:39:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:39:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:39:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:39:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:39:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:39:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:39:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:39:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:39:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:39:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:39:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:39:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:39:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:39:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:39:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:39:11 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:39:11 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:39:11 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:39:11 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:11 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:39:12 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:39:10.137950 End time: 2026-10-16 02:39:11.536583 2026-10-16 02:39:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:39:12 INFO tclean::::casa ########################################## 2026-10-16 02:39:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:39:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:12 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) 2026-10-16 02:39:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:39:12 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:39:12 2026****** 2026-10-16 02:39:12 INFO ImageFitter::fit+ 2026-10-16 02:39:12 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:39:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:39:12 INFO ImageFitter::fit+ --- region: 2026-10-16 02:39:12 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:39:12 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:39:12 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:39:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:39:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:39:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:39:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:12 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) 2026-10-16 02:39:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:39:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:39:12 INFO imstat::::casa ########################################## 2026-10-16 02:39:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:39:12 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 ) 2026-10-16 02:39:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:39:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:39:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:39:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:39:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:12 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) 2026-10-16 02:39:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:39:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:39:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:39:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:39:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:39:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:39:12 INFO imstat:::: Values --- 2026-10-16 02:39:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:39:12 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:39:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:39:12 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-16 02:39:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:39:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:39:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:39:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:39:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:39:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:39:12 INFO imstat:::: Statistics --- 2026-10-16 02:39:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:39:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:39:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:39:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:39:12 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-16 02:39:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-16 02:39:12 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-16 02:39:12 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-16 02:39:12 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-16 02:39:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:39:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:39:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:39:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:39:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:39:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:39:12 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 2026-10-16 02:39:12 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:39:11.602867 End time: 2026-10-16 02:39:11.628330 2026-10-16 02:39:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:39:12 INFO imstat::::casa ########################################## 2026-10-16 02:39:12 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:39:12 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 298.023551625deg 0.697578292rad' ) 2026-10-16 02:39:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:39:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:39:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:39:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:39:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:39:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:39:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:39:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:39:12 INFO MSTransformManager::open Select data 2026-10-16 02:39:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:39:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:39:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 0.697578292rad' successfully parsed 2026-10-16 02:39:12 INFO phaseshift::::casa Shift phase center 2026-10-16 02:39:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:39:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:39:11.645852 End time: 2026-10-16 02:39:12.177326 2026-10-16 02:39:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:39:12 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:12 INFO tclean::::casa ########################################## 2026-10-16 02:39:12 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:39:12 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:39:12 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:39:12 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:39:12 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:39:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:12 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:39:12 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:39:12 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:39:12 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:39:12 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:39:12 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:39:12 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:39:12 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:39:12 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.009883 2026-10-16 02:39:12 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:12 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:39:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:39:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:39:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:39:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:39:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:39:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:39:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:39:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:39:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:39:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:39:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:39:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:39:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:39:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:39:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:39:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:39:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:39:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:39:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:39:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:39:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:39:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:39:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:39:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:39:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:39:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:39:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:39:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:39:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:14 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:39:14 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:39:12.208716 End time: 2026-10-16 02:39:13.712243 2026-10-16 02:39:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:39:14 INFO tclean::::casa ########################################## 2026-10-16 02:39:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:39:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:14 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:39:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:39:14 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:39:14 2026****** 2026-10-16 02:39:14 INFO ImageFitter::fit+ 2026-10-16 02:39:14 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:39:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:39:14 INFO ImageFitter::fit+ --- region: 2026-10-16 02:39:14 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:39:14 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:39:14 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:39:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:39:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:39:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:39:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:14 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:39:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:39:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:39:14 INFO imstat::::casa ########################################## 2026-10-16 02:39:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:39:14 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:39:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:39:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:39:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:39:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:39:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:14 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:39:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:39:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:39:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:39:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:39:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:39:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:39:14 INFO imstat:::: Values --- 2026-10-16 02:39:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:39:14 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:39:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:39:14 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-10-16 02:39:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:39:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:39:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:39:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:39:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:39:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:39:14 INFO imstat:::: Statistics --- 2026-10-16 02:39:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:39:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:39:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:39:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:39:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-10-16 02:39:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-10-16 02:39:14 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-10-16 02:39:14 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-10-16 02:39:14 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-10-16 02:39:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:39:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:39:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:39:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:39:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:39:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:39:14 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 2026-10-16 02:39:14 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:39:13.780926 End time: 2026-10-16 02:39:13.806692 2026-10-16 02:39:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:39:14 INFO imstat::::casa ########################################## 2026-10-16 02:39:14 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:39:14 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39d58m05.8512' ) 2026-10-16 02:39:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:39:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:39:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:39:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:39:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:39:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:39:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:39:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:39:14 INFO MSTransformManager::open Select data 2026-10-16 02:39:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:39:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:39:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39d58m05.8512' successfully parsed 2026-10-16 02:39:14 INFO phaseshift::::casa Shift phase center 2026-10-16 02:39:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:39:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:39:13.822200 End time: 2026-10-16 02:39:14.294005 2026-10-16 02:39:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:39:14 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:14 INFO tclean::::casa ########################################## 2026-10-16 02:39:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:39:14 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:39:14 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:39:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:39:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:39:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:39:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:39:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:39:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:39:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:39:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:39:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:39:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:39:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.016636 2026-10-16 02:39:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:39:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:39:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:39:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:39:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:39:15 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:39:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:39:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:39:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:39:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:39:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:39:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:39:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:39:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:39:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:39:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:39:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:39:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:39:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:39:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:39:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:39:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:39:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:39:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:39:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:39:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:39:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:39:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:39:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:39:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:39:16 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:39:14.312530 End time: 2026-10-16 02:39:16.249121 2026-10-16 02:39:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:39:16 INFO tclean::::casa ########################################## 2026-10-16 02:39:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:39:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:16 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) 2026-10-16 02:39:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:39:16 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:39:16 2026****** 2026-10-16 02:39:16 INFO ImageFitter::fit+ 2026-10-16 02:39:16 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:39:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:39:16 INFO ImageFitter::fit+ --- region: 2026-10-16 02:39:16 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:39:16 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:39:16 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:39:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:39:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:39:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:39:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:16 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) 2026-10-16 02:39:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:39:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:39:16 INFO imstat::::casa ########################################## 2026-10-16 02:39:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:39:16 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 ) 2026-10-16 02:39:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:39:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:39:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:39:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:39:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:16 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) 2026-10-16 02:39:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:39:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:39:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:39:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:39:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:39:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:39:16 INFO imstat:::: Values --- 2026-10-16 02:39:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:39:16 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:39:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:39:16 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-10-16 02:39:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:39:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:39:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:39:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:39:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:39:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:39:16 INFO imstat:::: Statistics --- 2026-10-16 02:39:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:39:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:39:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:39:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:39:16 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-10-16 02:39:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-10-16 02:39:16 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-10-16 02:39:16 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-10-16 02:39:16 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-10-16 02:39:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:39:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:39:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:39:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:39:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:39:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:39:16 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 2026-10-16 02:39:16 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:39:16.311903 End time: 2026-10-16 02:39:16.336768 2026-10-16 02:39:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:39:16 INFO imstat::::casa ########################################## 2026-10-16 02:39:16 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:39:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 02:39:52.3901' ) 2026-10-16 02:39:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:39:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:39:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:39:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:39:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:39:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:39:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:39:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:39:16 INFO MSTransformManager::open Select data 2026-10-16 02:39:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:39:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-16 02:39:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 02:39:52.3901' successfully parsed 2026-10-16 02:39:17 INFO phaseshift::::casa Shift phase center 2026-10-16 02:39:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:39:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:39:16.351542 End time: 2026-10-16 02:39:16.740697 2026-10-16 02:39:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:39:17 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:17 INFO tclean::::casa ########################################## 2026-10-16 02:39:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:39:17 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:39:17 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:39:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:39:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:39:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:39:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:39:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:39:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:39:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:39:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:39:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:39:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:39:17 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011935 2026-10-16 02:39:17 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:39:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:39:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:39:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:39:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:39:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:39:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:39:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:39:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:39:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:39:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:39:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:39:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:39:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:39:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:39:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:39:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:39:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:39:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:39:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:39:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:39:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-16 02:39:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:39:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:39:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:39:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:39:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:39:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:39:18 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:39:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:39:18 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:39:16.759863 End time: 2026-10-16 02:39:18.146047 2026-10-16 02:39:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:39:18 INFO tclean::::casa ########################################## 2026-10-16 02:39:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:39:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:18 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:39:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:39:18 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:39:18 2026****** 2026-10-16 02:39:18 INFO ImageFitter::fit+ 2026-10-16 02:39:18 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:39:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:39:18 INFO ImageFitter::fit+ --- region: 2026-10-16 02:39:18 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:39:18 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:39:18 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:39:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:39:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:39:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:39:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:18 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-16 02:39:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116885 Jy 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126501 Jy 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:39:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:39:18 INFO imstat::::casa ########################################## 2026-10-16 02:39:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:39:18 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-16 02:39:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:39:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:39:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:39:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:39:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:18 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-16 02:39:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:39:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:39:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:39:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:39:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-16 02:39:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-16 02:39:18 INFO imstat:::: Values --- 2026-10-16 02:39:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:39:18 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:39:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:39:18 INFO imstat:::: -- minimum value [min]: -7.78268e-05 Jy/beam 2026-10-16 02:39:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:39:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:39:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:39:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:39:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:39:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:39:18 INFO imstat:::: Statistics --- 2026-10-16 02:39:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:39:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:39:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:39:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:39:18 INFO imstat:::: -- Median of the pixel values [median]: -1.8675e-05 Jy/beam 2026-10-16 02:39:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73782e-05 Jy/beam 2026-10-16 02:39:18 INFO imstat:::: -- IQR [quartile]: 3.56598e-05 Jy/beam 2026-10-16 02:39:18 INFO imstat:::: -- First quartile [q1]: -3.45364e-05 Jy/beam 2026-10-16 02:39:18 INFO imstat:::: -- Third quartile [q3]: 1.12335e-06 Jy/beam 2026-10-16 02:39:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:39:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:39:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:39:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:39:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:39:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:39:18 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 2026-10-16 02:39:18 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:39:18.191202 End time: 2026-10-16 02:39:18.210796 2026-10-16 02:39:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:39:18 INFO imstat::::casa ########################################## 2026-10-16 02:39:18 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:39:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39.968292000deg' ) 2026-10-16 02:39:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:39:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:39:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:39:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:39:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:39:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:39:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:39:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:39:18 INFO MSTransformManager::open Select data 2026-10-16 02:39:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:39:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:39:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39.968292000deg' successfully parsed 2026-10-16 02:39:18 INFO phaseshift::::casa Shift phase center 2026-10-16 02:39:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:39:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:39:18.222995 End time: 2026-10-16 02:39:18.692752 2026-10-16 02:39:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:39:19 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:19 INFO tclean::::casa ########################################## 2026-10-16 02:39:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:39:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:39:19 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:39:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:39:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:39:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:39:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:39:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:39:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:39:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:39:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:39:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:39:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:39:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011228 2026-10-16 02:39:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:39:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:39:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:39:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:39:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:39:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:39:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:39:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:39:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:39:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:39:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:39:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:39:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:39:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:39:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:39:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:39:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:39:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:39:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:39:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:39:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:39:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:39:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:39:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:39:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:39:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:39:20 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:39:20 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:39:20 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:39:20 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:20 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:39:20 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:39:18.725007 End time: 2026-10-16 02:39:20.340287 2026-10-16 02:39:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:39:20 INFO tclean::::casa ########################################## 2026-10-16 02:39:20 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:39:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:20 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-16 02:39:20 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:39:20 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:39:20 2026****** 2026-10-16 02:39:20 INFO ImageFitter::fit+ 2026-10-16 02:39:20 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:39:20 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:39:20 INFO ImageFitter::fit+ --- region: 2026-10-16 02:39:20 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:39:20 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:39:20 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:39:20 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:39:20 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:39:20 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:39:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:20 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) 2026-10-16 02:39:20 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:39:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:39:20 INFO imstat::::casa ########################################## 2026-10-16 02:39:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:39:20 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 ) 2026-10-16 02:39:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:39:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:39:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:39:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:39:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:20 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) 2026-10-16 02:39:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:39:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:39:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:39:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:39:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:39:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:39:20 INFO imstat:::: Values --- 2026-10-16 02:39:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:39:20 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:39:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:39:20 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-10-16 02:39:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:39:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:39:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:39:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:39:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:39:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:39:20 INFO imstat:::: Statistics --- 2026-10-16 02:39:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:39:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:39:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:39:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:39:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-10-16 02:39:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-10-16 02:39:20 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-10-16 02:39:20 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-10-16 02:39:20 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-10-16 02:39:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:39:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:39:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:39:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:39:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:39:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:39:20 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 2026-10-16 02:39:20 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:39:20.400745 End time: 2026-10-16 02:39:20.424193 2026-10-16 02:39:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:39:20 INFO imstat::::casa ########################################## 2026-10-16 02:39:20 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-16 02:39:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 0.697578292rad' ) 2026-10-16 02:39:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-16 02:39:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-16 02:39:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-16 02:39:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-16 02:39:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-16 02:39:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-16 02:39:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-16 02:39:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-16 02:39:20 INFO MSTransformManager::open Select data 2026-10-16 02:39:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-16 02:39:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-16 02:39:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 0.697578292rad' successfully parsed 2026-10-16 02:39:21 INFO phaseshift::::casa Shift phase center 2026-10-16 02:39:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-16 02:39:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-16 02:39:20.438035 End time: 2026-10-16 02:39:20.871409 2026-10-16 02:39:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-16 02:39:21 INFO phaseshift::::casa ########################################## 2026-10-16 02:39:21 INFO tclean::::casa ########################################## 2026-10-16 02:39:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-16 02:39:21 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-16 02:39:21 INFO tclean::::casa Verifying Input Parameters 2026-10-16 02:39:21 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-16 02:39:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-16 02:39:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-16 02:39:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-16 02:39:21 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-16 02:39:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-16 02:39:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 10.96 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-16 02:39:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-16 02:39:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-16 02:39:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-16 02:39:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-16 02:39:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.013426 2026-10-16 02:39:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-16 02:39:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-16 02:39:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-16 02:39:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-16 02:39:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-16 02:39:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-16 02:39:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-16 02:39:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-16 02:39:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-16 02:39:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-16 02:39:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-16 02:39:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-16 02:39:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-16 02:39:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-16 02:39:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-16 02:39:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-16 02:39:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-16 02:39:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-16 02:39:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-16 02:39:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-16 02:39:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-16 02:39:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-16 02:39:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-16 02:39:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-16 02:39:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-16 02:39:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-16 02:39:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-16 02:39:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-16 02:39:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-16 02:39:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-16 02:39:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-16 02:39:22 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.model', 'im_post_phaseshift.mask', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.pb', 'im_post_phaseshift.residual', 'im_post_phaseshift.psf'] 2026-10-16 02:39:22 INFO tclean::::casa Task tclean complete. Start time: 2026-10-16 02:39:20.890053 End time: 2026-10-16 02:39:22.288835 2026-10-16 02:39:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-16 02:39:22 INFO tclean::::casa ########################################## 2026-10-16 02:39:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-16 02:39:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:22 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) 2026-10-16 02:39:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-16 02:39:22 INFO ImageFitter::fit ****** Fit performed at Fri Oct 16 02:39:22 2026****** 2026-10-16 02:39:22 INFO ImageFitter::fit+ 2026-10-16 02:39:22 INFO ImageFitter::fit+ Input parameters --- 2026-10-16 02:39:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-16 02:39:22 INFO ImageFitter::fit+ --- region: 2026-10-16 02:39:22 INFO ImageFitter::fit+ --- channel: 0 2026-10-16 02:39:22 INFO ImageFitter::fit+ --- stokes: I 2026-10-16 02:39:22 INFO ImageFitter::fit+ --- mask: 2026-10-16 02:39:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-16 02:39:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-16 02:39:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-16 02:39:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:22 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) 2026-10-16 02:39:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ Position --- 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-16 02:39:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-16 02:39:22 INFO imstat::::casa ########################################## 2026-10-16 02:39:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-16 02:39:22 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 ) 2026-10-16 02:39:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-16 02:39:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-16 02:39:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-16 02:39:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-16 02:39:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-16 02:39:22 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-16 02:39:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-16 02:39:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-16 02:39:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-16 02:39:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-16 02:39:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-16 02:39:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-16 02:39:22 INFO imstat:::: Values --- 2026-10-16 02:39:22 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-16 02:39:22 INFO imstat:::: -- number of points [npts]: 65536 2026-10-16 02:39:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-16 02:39:22 INFO imstat:::: -- minimum value [min]: -7.77956e-05 Jy/beam 2026-10-16 02:39:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-16 02:39:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-16 02:39:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-16 02:39:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-16 02:39:22 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-16 02:39:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-16 02:39:22 INFO imstat:::: Statistics --- 2026-10-16 02:39:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-16 02:39:22 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-16 02:39:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-16 02:39:22 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-16 02:39:22 INFO imstat:::: -- Median of the pixel values [median]: -1.86648e-05 Jy/beam 2026-10-16 02:39:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73536e-05 Jy/beam 2026-10-16 02:39:22 INFO imstat:::: -- IQR [quartile]: 3.5639e-05 Jy/beam 2026-10-16 02:39:22 INFO imstat:::: -- First quartile [q1]: -3.45152e-05 Jy/beam 2026-10-16 02:39:22 INFO imstat:::: -- Third quartile [q3]: 1.12373e-06 Jy/beam 2026-10-16 02:39:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-16 02:39:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-16 02:39:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-16 02:39:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-16 02:39:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-16 02:39:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-16 02:39:22 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 2026-10-16 02:39:22 INFO imstat::::casa Task imstat complete. Start time: 2026-10-16 02:39:22.364116 End time: 2026-10-16 02:39:22.391889 2026-10-16 02:39:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-16 02:39:22 INFO imstat::::casa ########################################## . ---------------------------------------------------------------------- Ran 27 tests in 334.501s OK Generating XML reports...