2026-10-09 08:55:47 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-10-09 08:55:47 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-10-09 08:55:47 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-10-09 08:55:47 INFO ::casa 2026-10-09 08:55:47 INFO ::casa config values 2026-10-09 08:55:47 INFO ::casa agg = False 2026-10-09 08:55:47 INFO ::casa cachedir = '/home/casatest/.casa' 2026-10-09 08:55:47 INFO ::casa casaconfig_verbose = 1 2026-10-09 08:55:47 INFO ::casa colors = 'Neutral' 2026-10-09 08:55:47 INFO ::casa data_auto_update = False 2026-10-09 08:55:47 INFO ::casa data_update_interval = 1 2026-10-09 08:55:47 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-10-09 08:55:47 INFO ::casa iplog = False 2026-10-09 08:55:47 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/ipython-20261009-085542.log' 2026-10-09 08:55:47 INFO ::casa log2term = True 2026-10-09 08:55:47 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/casa-20261009-085542.log' 2026-10-09 08:55:47 INFO ::casa measures_auto_update = False 2026-10-09 08:55:47 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-10-09 08:55:47 INFO ::casa measures_site_interval = 2 2026-10-09 08:55:47 INFO ::casa measures_update_interval = 1 2026-10-09 08:55:47 INFO ::casa measurespath = '/opt/casa/data/master' 2026-10-09 08:55:47 INFO ::casa nogui = False 2026-10-09 08:55:47 INFO ::casa nologfile = False 2026-10-09 08:55:47 INFO ::casa nologger = True 2026-10-09 08:55:47 INFO ::casa pipeline = False 2026-10-09 08:55:47 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-10-09 08:55:47 INFO ::casa user_site = False 2026-10-09 08:55:47 INFO ::casa 2026-10-09 08:55:47 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-10-09 08:55:47 INFO ::casa measures version is unknown, this is probably a legacy version not installed by casaconfig 2026-10-09 08:55:47 INFO ::casa 2026-10-09 08:55:47 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-10-09 08:55:47 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-10-09 08:55:47 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-10-09 08:55:47 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/10/08/15:15, 2027/01/06/00:00:00 2026-10-09 08:55:47 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 6.7.4.11 -- Common Astronomy Software Applications [6.7.4.11] 2026-10-09 08:55:48 INFO phaseshift::::casa ########################################## 2026-10-09 08:55:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:55:48 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'} ) 2026-10-09 08:55:48 INFO MSTransformManager::parseMsSpecParams Input file name is /opt/casa/data/casatestdata/unittest/phaseshift/split11.ms 2026-10-09 08:55:48 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:55:48 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshift11.ms 2026-10-09 08:55:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:55:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:55:48 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:55:48 INFO MSTransformManager::open Select data 2026-10-09 08:55:48 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:55:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-09 08:55:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 1h27m38.337s +5d25m38.886s' successfully parsed for field 0 2026-10-09 08:55:51 INFO phaseshift::::casa Shift phase center 2026-10-09 08:55:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:55:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:55:48.109196 End time: 2026-10-09 08:55:52.434028 2026-10-09 08:55:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:55:52 INFO phaseshift::::casa ########################################## .2026-10-09 08:55:53 INFO phaseshift::::casa ########################################## 2026-10-09 08:55:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:55:53 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': 'GALACTIC 19h53m50 40d06m00', '2': 'GALACTIC 22h01m02 40d04m03'} ) 2026-10-09 08:55:53 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 08:55:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:55:53 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-09 08:55:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:55:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:55:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:55:53 INFO MSTransformManager::open Select data 2026-10-09 08:55:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:55:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-09 08:55:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 19h53m50 40d06m00' successfully parsed for field 0 2026-10-09 08:55:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 22h01m02 40d04m03' successfully parsed for field 2 2026-10-09 08:55:57 INFO phaseshift::::casa Shift phase center 2026-10-09 08:55:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:55:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:55:52.567541 End time: 2026-10-09 08:55:58.176008 2026-10-09 08:55:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:55:58 INFO phaseshift::::casa ########################################## .2026-10-09 08:55:58 INFO phaseshift::::casa ########################################## 2026-10-09 08:55:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:55:58 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'} ) 2026-10-09 08:55:58 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 08:55:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:55:58 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-09 08:55:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:55:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:55:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:55:58 INFO MSTransformManager::open Select data 2026-10-09 08:55:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-09 08:56:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-10-09 08:56:02 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-10-09 08:56:02 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-09 08:56:02 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-09 08:56:02 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'] ) 2026-10-09 08:56:02 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:56:02 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-09 08:56:02 INFO phaseshift::::casa+ mtlocal.open() 2026-10-09 08:56:02 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-09 08:56:02 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-09 08:56:02 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:56:02 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-10-09 08:56:02 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-09 08:56:02 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:56:02 INFO phaseshift::::casa+ RuntimeError: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-10-09 08:56:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:55:58.332844 End time: 2026-10-09 08:56:02.101689 2026-10-09 08:56:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:02 INFO phaseshift::::casa ########################################## .2026-10-09 08:56:02 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:02 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'} ) 2026-10-09 08:56:02 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 08:56:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:56:02 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-09 08:56:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:56:02 INFO MSTransformManager::open Select data 2026-10-09 08:56:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-09 08:56:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-10-09 08:56:04 INFO phaseshift::::casa Shift phase center 2026-10-09 08:56:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:56:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:02.195938 End time: 2026-10-09 08:56:05.538087 2026-10-09 08:56:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:06 INFO phaseshift::::casa ########################################## .2026-10-09 08:56:06 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:06 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'} ) 2026-10-09 08:56:06 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 08:56:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:56:06 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-09 08:56:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:06 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-10-09 08:56:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:56:06 INFO MSTransformManager::open Select data 2026-10-09 08:56:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:06 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-10-09 08:56:11 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-09 08:56:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 1 2026-10-09 08:56:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 22h01m02 40d04m03' successfully parsed for field 2 2026-10-09 08:56:11 INFO phaseshift::::casa Shift phase center 2026-10-09 08:56:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:56:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:05.697465 End time: 2026-10-09 08:56:12.002587 2026-10-09 08:56:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:12 INFO phaseshift::::casa ########################################## .2026-10-09 08:56:12 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:12 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'} ) 2026-10-09 08:56:12 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 08:56:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:56:12 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-09 08:56:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:12 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-10-09 08:56:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:56:12 INFO MSTransformManager::open Select data 2026-10-09 08:56:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:12 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-10-09 08:56:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-09 08:56:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m50 40d06m00' successfully parsed for field 0 2026-10-09 08:56:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 22h01m02 40d04m03' successfully parsed for field 2 2026-10-09 08:56:16 INFO phaseshift::::casa Shift phase center 2026-10-09 08:56:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:56:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:12.163930 End time: 2026-10-09 08:56:16.931266 2026-10-09 08:56:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:17 INFO phaseshift::::casa ########################################## .2026-10-09 08:56:17 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:17 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' ) 2026-10-09 08:56:17 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 08:56:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:56:17 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-09 08:56:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:56:17 INFO MSTransformManager::open Select data 2026-10-09 08:56:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:56:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-09 08:56:20 INFO phaseshift::::casa Shift phase center 2026-10-09 08:56:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:56:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:17.068912 End time: 2026-10-09 08:56:21.287320 2026-10-09 08:56:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:21 INFO phaseshift::::casa ########################################## ..2026-10-09 08:56:23 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) Requested JD 0 is outside the range of the IERS (Earth axis data) table. 2026-10-09 08:56:23 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) + Calculations will proceed with less precision ..2026-10-09 08:56:23 SEVERE Error in QuantumHolder::fromString with input string "xxh53m50": Illegal input units or format 2026-10-09 08:56:23 SEVERE + in converting quantity from string 2026-10-09 08:56:23 SEVERE Exception Reported: Empty QuantumHolder argument for asQuantumDouble 2026-10-09 08:56:23 SEVERE Exception Reports: Empty QuantumHolder argument for asQuantumDouble 2026-10-09 08:56:23 SEVERE phaseshift::::casa *** Error measures.direction() failed for phasecenter string: BOGUS xxh53m50 40d06m00 when interpreting parameter 'phasecenter': ...2026-10-09 08:56:26 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:26 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' ) 2026-10-09 08:56:26 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 08:56:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:56:26 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:56:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:26 INFO MSTransformManager::parseDataSelParams array selection is 1 2026-10-09 08:56:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:56:26 INFO MSTransformManager::open Select data 2026-10-09 08:56:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:26 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-10-09 08:56:26 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-09 08:56:26 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-09 08:56:26 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'] ) 2026-10-09 08:56:26 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:56:26 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-09 08:56:26 INFO phaseshift::::casa+ mtlocal.open() 2026-10-09 08:56:26 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-09 08:56:26 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-09 08:56:26 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:56:26 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-10-09 08:56:26 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-09 08:56:26 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:56:26 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-10-09 08:56:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:25.853937 End time: 2026-10-09 08:56:25.919054 2026-10-09 08:56:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:26 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:26 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:26 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' ) 2026-10-09 08:56:26 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 08:56:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:56:26 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:56:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:26 INFO MSTransformManager::parseDataSelParams array selection is 0 2026-10-09 08:56:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:56:26 INFO MSTransformManager::open Select data 2026-10-09 08:56:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:29 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-09 08:56:29 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-09 08:56:31 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:56:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-09 08:56:31 INFO phaseshift::::casa Shift phase center 2026-10-09 08:56:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:56:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:25.920536 End time: 2026-10-09 08:56:31.944446 2026-10-09 08:56:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:32 INFO phaseshift::::casa ########################################## .2026-10-09 08:56:33 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:33 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' ) 2026-10-09 08:56:33 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 08:56:33 INFO MSTransformManager::parseMsSpecParams Data column is MODEL 2026-10-09 08:56:33 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:56:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:33 WARN MSTransformManager::checkDataColumnsToFill MODEL_DATA column requested but not available in input MS 2026-10-09 08:56:33 INFO MSTransformManager::open Select data 2026-10-09 08:56:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:33 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). 2026-10-09 08:56:33 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-09 08:56:33 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-09 08:56:33 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-10-09 08:56:33 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:56:33 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-09 08:56:33 INFO phaseshift::::casa+ mtlocal.open() 2026-10-09 08:56:33 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-09 08:56:33 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-09 08:56:33 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:56:33 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-10-09 08:56:33 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-09 08:56:33 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:56:33 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). 2026-10-09 08:56:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:32.980744 End time: 2026-10-09 08:56:33.014506 2026-10-09 08:56:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:33 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:33 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:33 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' ) 2026-10-09 08:56:33 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 08:56:33 INFO MSTransformManager::parseMsSpecParams Data column is DATA 2026-10-09 08:56:33 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:56:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:56:33 INFO MSTransformManager::open Select data 2026-10-09 08:56:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:36 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-09 08:56:36 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-09 08:56:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:56:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-09 08:56:38 INFO phaseshift::::casa Shift phase center 2026-10-09 08:56:38 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:56:38 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:33.015583 End time: 2026-10-09 08:56:38.483422 2026-10-09 08:56:38 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:38 INFO phaseshift::::casa ########################################## .2026-10-09 08:56:40 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:40 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' ) 2026-10-09 08:56:40 INFO MSTransformManager::parseMsSpecParams Input file name is Itziar_copy.ms 2026-10-09 08:56:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:56:40 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:56:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:40 INFO MSTransformManager::parseDataSelParams field selection is 2 2026-10-09 08:56:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:56:40 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 08:56:40 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 08:56:40 INFO MSTransformManager::open Select data 2026-10-09 08:56:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:40 INFO MSTransformDataHandler::makeSelection 6125 out of 245000 rows are going to be considered due to the selection criteria. 2026-10-09 08:56:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:56:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 00h00m01 -29d55m40' successfully parsed 2026-10-09 08:56:42 INFO phaseshift::::casa Shift phase center 2026-10-09 08:56:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:56:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:39.535714 End time: 2026-10-09 08:56:43.340952 2026-10-09 08:56:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:43 INFO phaseshift::::casa ########################################## .2026-10-09 08:56:44 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:44 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' ) 2026-10-09 08:56:44 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 08:56:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:56:44 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:56:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:44 INFO MSTransformManager::parseDataSelParams scan intent selection is *FLUX* 2026-10-09 08:56:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:56:44 INFO MSTransformManager::open Select data 2026-10-09 08:56:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:44 INFO MSTransformDataHandler::makeSelection 570 out of 6270 rows are going to be considered due to the selection criteria. 2026-10-09 08:56:47 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-09 08:56:47 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-09 08:56:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:56:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-09 08:56:49 INFO phaseshift::::casa Shift phase center 2026-10-09 08:56:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:56:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:44.340165 End time: 2026-10-09 08:56:49.442625 2026-10-09 08:56:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:49 INFO phaseshift::::casa ########################################## .2026-10-09 08:56:51 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:51 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' ) 2026-10-09 08:56:51 INFO MSTransformManager::parseMsSpecParams Input file name is mms_copy.mms 2026-10-09 08:56:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:56:51 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:56:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:56:51 INFO MSTransformManager::open Select data 2026-10-09 08:56:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:56:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 05h30m48 13d31m48' successfully parsed 2026-10-09 08:56:54 INFO phaseshift::::casa Shift phase center 2026-10-09 08:56:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:56:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:50.765419 End time: 2026-10-09 08:56:54.601577 2026-10-09 08:56:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:55 INFO phaseshift::::casa ########################################## .2026-10-09 08:56:56 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:56 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' ) 2026-10-09 08:56:56 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 08:56:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:56:56 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:56:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:56 INFO MSTransformManager::parseDataSelParams observation selection is 1 2026-10-09 08:56:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:56 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:56:56 INFO MSTransformManager::open Select data 2026-10-09 08:56:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:56 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-10-09 08:56:56 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-09 08:56:56 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-09 08:56:56 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-10-09 08:56:56 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:56:56 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-09 08:56:56 INFO phaseshift::::casa+ mtlocal.open() 2026-10-09 08:56:56 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-09 08:56:56 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-09 08:56:56 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:56:56 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-10-09 08:56:56 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-09 08:56:56 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:56:56 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-10-09 08:56:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:55.697307 End time: 2026-10-09 08:56:55.737451 2026-10-09 08:56:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:56:56 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:56 INFO phaseshift::::casa ########################################## 2026-10-09 08:56:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:56:56 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' ) 2026-10-09 08:56:56 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 08:56:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:56:56 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:56:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:56:56 INFO MSTransformManager::parseDataSelParams observation selection is 0 2026-10-09 08:56:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:56:56 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:56:56 INFO MSTransformManager::open Select data 2026-10-09 08:56:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:56:59 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-09 08:56:59 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-09 08:57:00 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:57:00 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-09 08:57:00 INFO phaseshift::::casa Shift phase center 2026-10-09 08:57:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:57:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:56:55.738496 End time: 2026-10-09 08:57:02.069385 2026-10-09 08:57:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:57:02 INFO phaseshift::::casa ########################################## .2026-10-09 08:57:03 INFO phaseshift::::casa ########################################## 2026-10-09 08:57:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:57:03 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-09 08:57:03 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 08:57:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:57:03 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:57:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:57:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:57:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:57:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 08:57:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 08:57:03 INFO MSTransformManager::open Select data 2026-10-09 08:57:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:57:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:57:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-09 08:57:07 INFO phaseshift::::casa Shift phase center 2026-10-09 08:57:09 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:57:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:57:03.156698 End time: 2026-10-09 08:57:09.301222 2026-10-09 08:57:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:57:09 INFO phaseshift::::casa ########################################## .2026-10-09 08:57:10 INFO phaseshift::::casa ########################################## 2026-10-09 08:57:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:57:10 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='' ) 2026-10-09 08:57:10 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: phasecenter parameter must be specified 2026-10-09 08:57:10 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-09 08:57:10 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-09 08:57:10 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'] ) 2026-10-09 08:57:10 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-09 08:57:10 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 31, in phaseshift 2026-10-09 08:57:10 INFO phaseshift::::casa+ raise ValueError("phasecenter parameter must be specified") 2026-10-09 08:57:10 INFO phaseshift::::casa+ ValueError: phasecenter parameter must be specified 2026-10-09 08:57:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:57:10.301468 End time: 2026-10-09 08:57:10.302495 2026-10-09 08:57:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:57:10 INFO phaseshift::::casa ########################################## 2026-10-09 08:57:10 INFO phaseshift::::casa ########################################## 2026-10-09 08:57:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:57:10 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' ) 2026-10-09 08:57:10 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 08:57:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:57:10 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:57:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:57:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:57:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:57:10 INFO MSTransformManager::open Select data 2026-10-09 08:57:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:57:13 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-09 08:57:13 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-09 08:57:15 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:57:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -08d23m35' successfully parsed 2026-10-09 08:57:15 INFO phaseshift::::casa Shift phase center 2026-10-09 08:57:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:57:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:57:10.303490 End time: 2026-10-09 08:57:15.685388 2026-10-09 08:57:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:57:16 INFO phaseshift::::casa ########################################## .2026-10-09 08:57:17 INFO phaseshift::::casa ########################################## 2026-10-09 08:57:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:57:17 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='00h06m14 -08d23m35' ) 2026-10-09 08:57:17 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-09 08:57:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:57:17 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:57:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:57:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:57:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:57:17 INFO MSTransformManager::open Select data 2026-10-09 08:57:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:57:20 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-09 08:57:20 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-09 08:57:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:57:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center '00h06m14 -08d23m35' successfully parsed 2026-10-09 08:57:23 INFO phaseshift::::casa Shift phase center 2026-10-09 08:57:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:57:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:57:16.993191 End time: 2026-10-09 08:57:24.556351 2026-10-09 08:57:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:57:25 INFO phaseshift::::casa ########################################## .2026-10-09 08:57:26 INFO phaseshift::::casa ########################################## 2026-10-09 08:57:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:57:26 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' ) 2026-10-09 08:57:26 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 08:57:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:57:26 INFO MSTransformManager::parseMsSpecParams Output file name is post_phaseshift.ms 2026-10-09 08:57:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:57:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:57:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:57:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 08:57:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 08:57:26 INFO MSTransformManager::open Select data 2026-10-09 08:57:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:57:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:57:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-09 08:57:30 INFO phaseshift::::casa Shift phase center 2026-10-09 08:57:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:57:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:57:25.588613 End time: 2026-10-09 08:57:31.965328 2026-10-09 08:57:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:57:32 INFO phaseshift::::casa ########################################## 2026-10-09 08:57:32 INFO tclean::::casa ########################################## 2026-10-09 08:57:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 08:57:32 INFO tclean::::casa tclean( vis='datacopy.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_pre', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 08:57:32 INFO tclean::::casa Verifying Input Parameters 2026-10-09 08:57:32 INFO SynthesisImagerVi2::selectData MS : datacopy.ms | [Opened in readonly mode] 2026-10-09 08:57:32 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-10-09 08:57:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-10-09 08:57:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-10-09 08:57:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 08:57:32 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-10-09 08:57:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_pre] with ftmachine : wprojectft 2026-10-09 08:57:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 23.22 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 08:57:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 08:57:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_pre] : hogbom 2026-10-09 08:57:32 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 08:57:33 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-10-09 08:57:33 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-10-09 08:57:33 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-10-09 08:57:33 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-10-09 08:57:50 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 2026-10-09 08:57:50 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 31911 MB 0%....10....20....30....40....50....60....70....80....90....100% 2026-10-09 08:58:27 INFO SIImageStore::calcSensitivity [im2_pre] Theoretical sensitivity (Jy/bm):0.00204403 2026-10-09 08:58:28 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.115515 2026-10-09 08:58:28 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-10-09 08:58:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 08:58:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 08:58:32 INFO task_tclean::SDAlgorithmBase::restore [im2_pre] : Restoring model image. 2026-10-09 08:58:32 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-10-09 08:58:34 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-10-09 08:58:34 INFO tclean::::casa Searching for images with prefix 'im2_pre'... Found these, writing history into them: ['im2_pre.residual', 'im2_pre.model', 'im2_pre.psf', 'im2_pre.sumwt', 'im2_pre.pb', 'im2_pre.image'] 2026-10-09 08:58:36 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 08:57:32.086619 End time: 2026-10-09 08:58:36.115691 2026-10-09 08:58:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 08:58:36 INFO tclean::::casa ########################################## 2026-10-09 08:58:36 INFO tclean::::casa ########################################## 2026-10-09 08:58:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 08:58:36 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift', imsize=2048, cell='5arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 08:58:36 INFO tclean::::casa Verifying Input Parameters 2026-10-09 08:58:36 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-10-09 08:58:36 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-10-09 08:58:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-10-09 08:58:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-10-09 08:58:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 08:58:36 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-10-09 08:58:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift] with ftmachine : wprojectft 2026-10-09 08:58:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 23.2 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 08:58:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 08:58:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift] : hogbom 2026-10-09 08:58:36 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 08:58:38 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-10-09 08:58:38 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-10-09 08:58:38 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-10-09 08:58:38 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-10-09 08:58:53 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 2026-10-09 08:58:53 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 31911 MB 0%....10....20....30....40....50....60....70....80....90....100% 2026-10-09 08:59:06 INFO SIImageStore::calcSensitivity [im2_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00204403 2026-10-09 08:59:06 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.112222 2026-10-09 08:59:06 INFO SIImageStore::printBeamSet Beam : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-10-09 08:59:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 08:59:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 08:59:11 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift] : Restoring model image. 2026-10-09 08:59:11 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-10-09 08:59:12 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-10-09 08:59:12 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift'... Found these, writing history into them: ['im2_post_phaseshift.sumwt', 'im2_post_phaseshift.pb', 'im2_post_phaseshift.model', 'im2_post_phaseshift.psf', 'im2_post_phaseshift.image', 'im2_post_phaseshift.residual'] 2026-10-09 08:59:13 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 08:58:36.157176 End time: 2026-10-09 08:59:12.947976 2026-10-09 08:59:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 08:59:13 INFO tclean::::casa ########################################## 2026-10-09 08:59:13 INFO tclean::::casa ########################################## 2026-10-09 08:59:13 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 08:59:13 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift_tclean_phasecenter', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 08:59:13 INFO tclean::::casa Verifying Input Parameters 2026-10-09 08:59:13 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-10-09 08:59:13 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-10-09 08:59:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-10-09 08:59:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-10-09 08:59:13 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 08:59:13 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-10-09 08:59:13 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift_tclean_phasecenter] with ftmachine : wprojectft 2026-10-09 08:59:13 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 23.21 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 08:59:13 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 08:59:13 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift_tclean_phasecenter] : hogbom 2026-10-09 08:59:13 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 08:59:14 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-10-09 08:59:14 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-10-09 08:59:14 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-10-09 08:59:14 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-10-09 08:59:28 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 2026-10-09 08:59:28 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 31911 MB 2026-10-09 08:59:31 INFO SIImageStore::calcSensitivity [im2_post_phaseshift_tclean_phasecenter] Theoretical sensitivity (Jy/bm):0.00204403 2026-10-09 08:59:32 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.107129 2026-10-09 08:59:32 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-10-09 08:59:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 08:59:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 08:59:36 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift_tclean_phasecenter] : Restoring model image. 2026-10-09 08:59:36 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-10-09 08:59:37 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-10-09 08:59:37 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.model', 'im2_post_phaseshift_tclean_phasecenter.residual', 'im2_post_phaseshift_tclean_phasecenter.sumwt', 'im2_post_phaseshift_tclean_phasecenter.pb', 'im2_post_phaseshift_tclean_phasecenter.psf'] 2026-10-09 08:59:38 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 08:59:12.979335 End time: 2026-10-09 08:59:38.496156 2026-10-09 08:59:38 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 08:59:38 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} .2026-10-09 08:59:40 INFO phaseshift::::casa ########################################## 2026-10-09 08:59:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:59:40 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' ) 2026-10-09 08:59:40 INFO MSTransformManager::parseMsSpecParams Input file name is ngc_copy.ms 2026-10-09 08:59:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:59:40 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:59:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:59:40 INFO MSTransformManager::parseDataSelParams spw selection is 1 2026-10-09 08:59:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:59:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:59:40 INFO MSTransformManager::initDataSelectionParams Selected SPWs Ids are Axis Lengths: [1, 4] (NB: Matrix in Row/Column order) 2026-10-09 08:59:40 INFO MSTransformManager::initDataSelectionParams+ [1, 0, 4, 1] 2026-10-09 08:59:40 INFO MSTransformManager::open Select data 2026-10-09 08:59:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:59:40 INFO MSTransformDataHandler::makeSelection 13338 out of 26676 rows are going to be considered due to the selection criteria. 2026-10-09 08:59:43 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:59:43 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 23h11m54 61d10m54' successfully parsed 2026-10-09 08:59:43 INFO phaseshift::::casa Shift phase center 2026-10-09 08:59:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:59:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:59:39.659781 End time: 2026-10-09 08:59:43.463940 2026-10-09 08:59:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:59:43 INFO phaseshift::::casa ########################################## .2026-10-09 08:59:45 INFO phaseshift::::casa ########################################## 2026-10-09 08:59:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:59:45 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-09 08:59:45 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-09 08:59:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:59:45 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-09 08:59:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:59:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:59:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:59:45 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 08:59:45 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 08:59:45 INFO MSTransformManager::open Select data 2026-10-09 08:59:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:59:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:59:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-09 08:59:50 INFO phaseshift::::casa Shift phase center 2026-10-09 08:59:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:59:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:59:44.590591 End time: 2026-10-09 08:59:52.502790 2026-10-09 08:59:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:59:53 INFO phaseshift::::casa ########################################## .2026-10-09 08:59:53 INFO phaseshift::::casa ########################################## 2026-10-09 08:59:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 08:59:53 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' ) 2026-10-09 08:59:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 08:59:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 08:59:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 08:59:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 08:59:53 INFO MSTransformManager::parseDataSelParams field selection is 0 2026-10-09 08:59:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 08:59:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 08:59:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 08:59:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 08:59:53 INFO MSTransformManager::open Select data 2026-10-09 08:59:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 08:59:53 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-09 08:59:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 08:59:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-10-09 08:59:57 INFO phaseshift::::casa Shift phase center 2026-10-09 08:59:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 08:59:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 08:59:53.314775 End time: 2026-10-09 08:59:58.507706 2026-10-09 08:59:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 08:59:59 INFO phaseshift::::casa ########################################## 2026-10-09 08:59:59 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-09 08:59:59 INFO tclean::::casa ########################################## 2026-10-09 08:59:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 08:59:59 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 08:59:59 INFO tclean::::casa Verifying Input Parameters 2026-10-09 08:59:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 08:59:59 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-09 08:59:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 08:59:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 08:59:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 08:59:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-10-09 08:59:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 08:59:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.21 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 08:59:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 08:59:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 08:59:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:00:02 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-09 09:00:02 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.032228 2026-10-09 09:00:02 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-09 09:00:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:00:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:00:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:00:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:00:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:00:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:00:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:00:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-10-09 09:00:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:00:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:00:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:00:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:00:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:00:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-10-09 09:00:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-10-09 09:00:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:00:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:00:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-10-09 09:00:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:00:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-10-09 09:00:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-10-09 09:00:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:00:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:00:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-10-09 09:00:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:00:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-10-09 09:00:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-10-09 09:00:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:00:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:00:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-10-09 09:00:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:00:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:00:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:00:19 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-09 09:00:19 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:00:21 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 08:59:58.849443 End time: 2026-10-09 09:00:21.301753 2026-10-09 09:00:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:00:21 INFO tclean::::casa ########################################## 2026-10-09 09:00:21 INFO imstat::::casa ########################################## 2026-10-09 09:00:21 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:00:21 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 ) 2026-10-09 09:00:21 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:00:21 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:00:21 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:00:21 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:00:21 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:00:21 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) 2026-10-09 09:00:21 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:00:21 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:00:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:00:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:00:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-10-09 09:00:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-10-09 09:00:21 INFO imstat:::: Values --- 2026-10-09 09:00:21 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-10-09 09:00:21 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:00:21 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:00:21 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-10-09 09:00:21 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-10-09 09:00:21 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-10-09 09:00:21 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-10-09 09:00:21 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-10-09 09:00:21 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-10-09 09:00:21 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-10-09 09:00:21 INFO imstat:::: Statistics --- 2026-10-09 09:00:21 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-10-09 09:00:21 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-10-09 09:00:21 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-10-09 09:00:21 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-10-09 09:00:21 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-10-09 09:00:21 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-10-09 09:00:21 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-10-09 09:00:21 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-10-09 09:00:21 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-10-09 09:00:21 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:00:21 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:00:21 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:00:21 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:00:21 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:00:21 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:00:21 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 2026-10-09 09:00:21 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:00:21.328175 End time: 2026-10-09 09:00:21.369968 2026-10-09 09:00:21 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:00:21 INFO imstat::::casa ########################################## 2026-10-09 09:00:21 INFO phaseshift::::casa ########################################## 2026-10-09 09:00:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:00:21 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' ) 2026-10-09 09:00:21 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:00:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:00:21 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:00:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:00:21 INFO MSTransformManager::parseDataSelParams field selection is fake 2026-10-09 09:00:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:00:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:00:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:00:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:00:21 INFO MSTransformManager::open Select data 2026-10-09 09:00:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:00:21 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-09 09:00:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:00:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-10-09 09:00:29 INFO phaseshift::::casa Shift phase center 2026-10-09 09:00:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:00:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:00:21.386949 End time: 2026-10-09 09:00:30.960048 2026-10-09 09:00:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:00:31 INFO phaseshift::::casa ########################################## 2026-10-09 09:00:31 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-10-09 09:00:31 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-09 09:00:31 INFO tclean::::casa ########################################## 2026-10-09 09:00:31 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:00:31 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:00:31 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:00:31 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:00:31 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-09 09:00:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:00:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:00:31 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:00:31 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-10-09 09:00:31 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:00:31 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.2 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:00:31 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:00:31 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:00:31 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:00:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-09 09:00:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029936 2026-10-09 09:00:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-09 09:00:33 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:00:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:00:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:00:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:00:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:00:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:00:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:00:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-10-09 09:00:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:00:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:00:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:00:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:00:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:00:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-10-09 09:00:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-10-09 09:00:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:00:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:00:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-10-09 09:00:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:00:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-10-09 09:00:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-10-09 09:00:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:00:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:00:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-10-09 09:00:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:00:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-10-09 09:00:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-10-09 09:00:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:00:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:00:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-10-09 09:00:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:00:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:00:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:00:49 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-09 09:00:49 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:00:51 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:00:31.059734 End time: 2026-10-09 09:00:51.474281 2026-10-09 09:00:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:00:51 INFO tclean::::casa ########################################## 2026-10-09 09:00:51 INFO imstat::::casa ########################################## 2026-10-09 09:00:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:00:51 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:00:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:00:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:00:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:00:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:00:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:00:51 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) 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-10-09 09:00:52 INFO imstat:::: Values --- 2026-10-09 09:00:52 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-10-09 09:00:52 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:00:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:00:52 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-10-09 09:00:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-10-09 09:00:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-10-09 09:00:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-10-09 09:00:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-10-09 09:00:52 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-10-09 09:00:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-10-09 09:00:52 INFO imstat:::: Statistics --- 2026-10-09 09:00:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-10-09 09:00:52 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-10-09 09:00:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-10-09 09:00:52 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-10-09 09:00:52 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-10-09 09:00:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-10-09 09:00:52 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-10-09 09:00:52 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-10-09 09:00:52 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:00:52 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.059610e+02 9.246232e-03 1.521305e-01 1.518505e-01 -1.228298e-04 4.999997e+00 2026-10-09 09:00:52 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:00:51.479197 End time: 2026-10-09 09:00:51.518473 2026-10-09 09:00:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:00:52 INFO imstat::::casa ########################################## 2026-10-09 09:00:52 INFO phaseshift::::casa ########################################## 2026-10-09 09:00:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:00:52 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-10-09 09:00:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:00:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:00:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:00:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:00:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:00:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:00:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:00:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:00:52 INFO MSTransformManager::open Select data 2026-10-09 09:00:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:00:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:00:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-10-09 09:00:57 INFO phaseshift::::casa Shift phase center 2026-10-09 09:00:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:00:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:00:51.538478 End time: 2026-10-09 09:00:57.470665 2026-10-09 09:00:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:00:57 INFO phaseshift::::casa ########################################## 2026-10-09 09:00:57 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-09 09:00:58 INFO tclean::::casa ########################################## 2026-10-09 09:00:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:00:58 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:00:58 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:00:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:00:58 INFO SynthesisImagerVi2::selectData NRows selected : 7020 2026-10-09 09:00:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:00:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:00:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:00:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:00:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:00:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.2 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:00:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:00:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:00:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:00:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00843949 2026-10-09 09:00:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025278 2026-10-09 09:00:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-10-09 09:00:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:01:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:01:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:01:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:01:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:01:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:01:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6069034934043884, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:01:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.606903, CycleNiter=20, Gain=0.3 2026-10-09 09:01:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:01:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:01:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:01:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:01:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07140088081359863, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:01:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0714009, CycleNiter=14, Gain=0.3 2026-10-09 09:01:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-10-09 09:01:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:01:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:01:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-10-09 09:01:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00840018317103386, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:01:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00840018, CycleNiter=8, Gain=0.3 2026-10-09 09:01:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-10-09 09:01:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:01:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:01:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814189, over full image : 0.00814189 2026-10-09 09:01:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009882674785330892, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:01:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000988267, CycleNiter=2, Gain=0.3 2026-10-09 09:01:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814189->0.00279267, Reached cycleniter. 2026-10-09 09:01:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:01:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:01:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0027928, over full image : 0.0027928 2026-10-09 09:01:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:01:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:01:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:01:14 INFO SIImageStore::restore Beam for chan : 0 : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-10-09 09:01:14 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:01:16 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:00:57.651483 End time: 2026-10-09 09:01:15.578919 2026-10-09 09:01:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:01:16 INFO tclean::::casa ########################################## 2026-10-09 09:01:16 INFO imstat::::casa ########################################## 2026-10-09 09:01:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:01:16 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 ) 2026-10-09 09:01:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:01:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:01:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:01:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:01:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:01:16 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) 2026-10-09 09:01:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:01:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:01:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:01:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:01:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 999981604.64Hz 2026-10-09 09:01:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 999981604.64Hz 2026-10-09 09:01:16 INFO imstat:::: Values --- 2026-10-09 09:01:16 INFO imstat:::: -- flux density [flux]: 4.99444 Jy 2026-10-09 09:01:16 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:01:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:01:16 INFO imstat:::: -- minimum value [min]: -9.70533e-05 Jy/beam 2026-10-09 09:01:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-10-09 09:01:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [158, 70, 0, 0] 2026-10-09 09:01:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981604.64Hz 2026-10-09 09:01:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:29.120, +39.58.47.882, I, 999981604.64Hz 2026-10-09 09:01:16 INFO imstat:::: -- Sum of pixel values [sum]: 610.203 Jy/beam 2026-10-09 09:01:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1527.26 Jy/beam.Jy/beam 2026-10-09 09:01:16 INFO imstat:::: Statistics --- 2026-10-09 09:01:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00931096 Jy/beam 2026-10-09 09:01:16 INFO imstat:::: -- Variance of the pixel values : 0.0232178 Jy/beam 2026-10-09 09:01:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152374 Jy/beam 2026-10-09 09:01:16 INFO imstat:::: -- Root mean square [rms]: 0.152657 Jy/beam 2026-10-09 09:01:16 INFO imstat:::: -- Median of the pixel values [median]: -1.85752e-05 Jy/beam 2026-10-09 09:01:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.83975e-05 Jy/beam 2026-10-09 09:01:16 INFO imstat:::: -- IQR [quartile]: 3.74524e-05 Jy/beam 2026-10-09 09:01:16 INFO imstat:::: -- First quartile [q1]: -3.53147e-05 Jy/beam 2026-10-09 09:01:16 INFO imstat:::: -- Third quartile [q3]: 2.13765e-06 Jy/beam 2026-10-09 09:01:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:01:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:01:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:01:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:01:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:01:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:01:16 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 2026-10-09 09:01:16 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:01:15.583947 End time: 2026-10-09 09:01:15.623589 2026-10-09 09:01:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:01:16 INFO imstat::::casa ########################################## 2026-10-09 09:01:16 INFO phaseshift::::casa ########################################## 2026-10-09 09:01:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:01:16 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' ) 2026-10-09 09:01:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:01:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:01:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:01:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:01:16 INFO MSTransformManager::parseDataSelParams field selection is 1 2026-10-09 09:01:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:01:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:01:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:01:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:01:16 INFO MSTransformManager::open Select data 2026-10-09 09:01:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:01:16 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-09 09:01:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:01:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-10-09 09:01:19 INFO phaseshift::::casa Shift phase center 2026-10-09 09:01:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:01:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:01:15.644028 End time: 2026-10-09 09:01:21.554633 2026-10-09 09:01:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:01:22 INFO phaseshift::::casa ########################################## 2026-10-09 09:01:22 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-09 09:01:22 INFO tclean::::casa ########################################## 2026-10-09 09:01:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:01:22 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:01:22 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:01:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:01:22 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-09 09:01:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:01:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:01:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:01:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-10-09 09:01:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:01:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.2 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:01:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:01:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:01:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:01:25 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-09 09:01:25 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022429 2026-10-09 09:01:25 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-09 09:01:25 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:01:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:01:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-10-09 09:01:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:01:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:01:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-10-09 09:01:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:01:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-10-09 09:01:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-10-09 09:01:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:01:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:01:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-10-09 09:01:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:01:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:01:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:01:34 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-09 09:01:35 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:01:37 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:01:21.782222 End time: 2026-10-09 09:01:37.205739 2026-10-09 09:01:37 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:01:37 INFO tclean::::casa ########################################## 2026-10-09 09:01:37 INFO imstat::::casa ########################################## 2026-10-09 09:01:37 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:01:37 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 ) 2026-10-09 09:01:37 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:01:37 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:01:37 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:01:37 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:01:37 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:01:37 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) 2026-10-09 09:01:37 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:01:37 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:01:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:01:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:01:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-10-09 09:01:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-10-09 09:01:37 INFO imstat:::: Values --- 2026-10-09 09:01:37 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-10-09 09:01:37 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:01:37 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-10-09 09:01:37 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-10-09 09:01:37 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-10-09 09:01:37 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-10-09 09:01:37 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-10-09 09:01:37 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-10-09 09:01:37 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-10-09 09:01:37 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-10-09 09:01:37 INFO imstat:::: Statistics --- 2026-10-09 09:01:37 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-10-09 09:01:37 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-10-09 09:01:37 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-10-09 09:01:37 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-10-09 09:01:37 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-10-09 09:01:37 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-10-09 09:01:37 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-10-09 09:01:37 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-10-09 09:01:37 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-10-09 09:01:37 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:01:37 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:01:37 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:01:37 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:01:37 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:01:37 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:01:37 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 2026-10-09 09:01:37 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:01:37.210331 End time: 2026-10-09 09:01:37.253092 2026-10-09 09:01:37 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:01:37 INFO imstat::::casa ########################################## 2026-10-09 09:01:37 INFO phaseshift::::casa ########################################## 2026-10-09 09:01:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:01:37 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' ) 2026-10-09 09:01:37 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:01:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:01:37 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:01:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:01:37 INFO MSTransformManager::parseDataSelParams field selection is pretend 2026-10-09 09:01:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:01:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:01:37 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:01:37 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:01:37 INFO MSTransformManager::open Select data 2026-10-09 09:01:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:01:37 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-09 09:01:43 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:01:43 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-10-09 09:01:43 INFO phaseshift::::casa Shift phase center 2026-10-09 09:01:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:01:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:01:37.279252 End time: 2026-10-09 09:01:43.427206 2026-10-09 09:01:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:01:43 INFO phaseshift::::casa ########################################## 2026-10-09 09:01:43 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-10-09 09:01:43 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-09 09:01:44 INFO tclean::::casa ########################################## 2026-10-09 09:01:44 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:01:44 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:01:44 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:01:44 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:01:44 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-09 09:01:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:01:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:01:44 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:01:44 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-10-09 09:01:44 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:01:44 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.2 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:01:44 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:01:44 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:01:44 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:01:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-09 09:01:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025133 2026-10-09 09:01:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-09 09:01:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:01:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:01:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-10-09 09:01:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:01:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:01:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-10-09 09:01:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:01:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-10-09 09:01:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-10-09 09:01:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:01:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:01:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-10-09 09:01:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:01:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:01:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:01:54 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-09 09:01:55 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:01:56 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:01:43.501879 End time: 2026-10-09 09:01:56.362501 2026-10-09 09:01:56 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:01:56 INFO tclean::::casa ########################################## 2026-10-09 09:01:56 INFO imstat::::casa ########################################## 2026-10-09 09:01:56 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:01:56 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 ) 2026-10-09 09:01:56 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:01:56 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:01:56 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:01:56 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:01:56 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:01:56 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) 2026-10-09 09:01:56 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:01:56 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:01:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:01:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:01:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-10-09 09:01:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-10-09 09:01:56 INFO imstat:::: Values --- 2026-10-09 09:01:56 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-10-09 09:01:56 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:01:56 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-10-09 09:01:56 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-10-09 09:01:56 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-10-09 09:01:56 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-10-09 09:01:56 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-10-09 09:01:56 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-10-09 09:01:56 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-10-09 09:01:56 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-10-09 09:01:56 INFO imstat:::: Statistics --- 2026-10-09 09:01:56 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-10-09 09:01:56 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-10-09 09:01:56 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-10-09 09:01:56 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-10-09 09:01:56 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-10-09 09:01:56 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-10-09 09:01:56 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-10-09 09:01:56 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-10-09 09:01:56 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-10-09 09:01:56 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:01:56 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:01:56 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:01:56 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:01:56 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:01:56 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:01:56 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 2026-10-09 09:01:56 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:01:56.367459 End time: 2026-10-09 09:01:56.416438 2026-10-09 09:01:56 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:01:56 INFO imstat::::casa ########################################## .2026-10-09 09:01:57 INFO tclean::::casa ########################################## 2026-10-09 09:01:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:01:57 INFO tclean::::casa tclean( vis='sim_data.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_orig', imsize=2048, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:01:57 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:01:57 INFO SynthesisImagerVi2::selectData MS : sim_data.ms | [Opened in readonly mode] 2026-10-09 09:01:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:01:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-10-09 09:01:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-10-09 09:01:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:01:57 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [9.99981e+08] at [0] with increment [1e+08] 2026-10-09 09:01:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_orig] with ftmachine : wprojectft 2026-10-09 09:01:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 23.2 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:01:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:01:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_orig] : hogbom 2026-10-09 09:01:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:01:58 INFO task_tclean::WPConvFunc::findConvFunction W projection using 128 planes 2026-10-09 09:01:58 INFO task_tclean::WPConvFunc::findConvFunction Using maximum possible W = 6445.78 (wavelengths) 2026-10-09 09:01:58 INFO task_tclean::WPConvFunc::findConvFunction Typical wavelength = 0.299799 (m) 2026-10-09 09:01:58 INFO task_tclean::WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.399639 wavelengths per pixel 2026-10-09 09:02:14 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 2026-10-09 09:02:14 INFO task_tclean::WPConvFunc::findConvFunction Memory used in gridding function = 14 MB from maximum 31911 MB 2026-10-09 09:02:16 INFO task_tclean::SIImageStore::calcSensitivity [im_orig] Theoretical sensitivity (Jy/bm):0.00889437 2026-10-09 09:02:17 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.120391 2026-10-09 09:02:17 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-10-09 09:02:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:02:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:02:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 4.94899 2026-10-09 09:02:27 INFO SynthesisDeconvolver::setupMask [im_orig] Initializing new mask to 1.0 for the full image 2026-10-09 09:02:27 INFO SynthesisDeconvolver::setupMask [im_orig] Number of pixels in the clean mask : 4.1943e+06 out of a total of 4.1943e+06 pixels. [ 100 % ] 2026-10-09 09:02:27 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 4.94899, over full image : 4.94899 2026-10-09 09:02:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.5971387624740601, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:02:27 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.597139, CycleNiter=20, Gain=0.3 2026-10-09 09:02:29 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=0->4.6028, peakres=4.94899->0.435227, Reached cyclethreshold. 2026-10-09 09:02:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 7 iterations. 2026-10-09 09:02:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:02:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.45574, over full image : 0.45574 2026-10-09 09:02:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 13, 'cyclethreshold': 0.05498892068862915, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:02:32 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.0549889, CycleNiter=13, Gain=0.3 2026-10-09 09:02:33 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=4.6028->5.02619, peakres=0.45574->0.0435268, Reached cyclethreshold. 2026-10-09 09:02:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 14 iterations. 2026-10-09 09:02:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:02:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0416506, over full image : 0.0416506 2026-10-09 09:02:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 6, 'cyclethreshold': 0.005025508347898722, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:02:37 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.00502551, CycleNiter=6, Gain=0.3 2026-10-09 09:02:38 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->6 [6], model=5.02619->5.04001, peakres=0.0416506->0.0226678, Reached cycleniter. 2026-10-09 09:02:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:02:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:02:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.022671, over full image : 0.022671 2026-10-09 09:02:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:02:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:02:42 INFO SDAlgorithmBase::restore [im_orig] : Restoring model image. 2026-10-09 09:02:42 INFO SIImageStore::restore Beam for chan : 0 : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-10-09 09:02:43 INFO tclean::::casa Searching for images with prefix 'im_orig'... Found these, writing history into them: ['im_orig.sumwt', 'im_orig.psf', 'im_orig.model', 'im_orig.pb', 'im_orig.image', 'im_orig.residual', 'im_orig.mask'] 2026-10-09 09:02:46 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:01:57.265167 End time: 2026-10-09 09:02:45.739087 2026-10-09 09:02:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:02:46 INFO tclean::::casa ########################################## 2026-10-09 09:02:46 INFO imstat::::casa ########################################## 2026-10-09 09:02:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:02:46 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 ) 2026-10-09 09:02:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:02:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:02:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:02:46 INFO imstat::image::statistics Determining stats for image im_orig.image 2026-10-09 09:02:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:02:46 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) 2026-10-09 09:02:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:02:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:02:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:02:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [2047, 2047, 0, 0] 2026-10-09 09:02:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 20:11:05.220, +38.21.11.967, I, 999980841.3Hz 2026-10-09 09:02:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:47:03.322, +42.54.02.996, I, 999980841.3Hz 2026-10-09 09:02:46 INFO imstat:::: Values --- 2026-10-09 09:02:46 INFO imstat:::: -- flux density [flux]: 5.2713 Jy 2026-10-09 09:02:46 INFO imstat:::: -- number of points [npts]: 4.1943e+06 2026-10-09 09:02:46 INFO imstat:::: -- maximum value [max]: 4.97713 Jy/beam 2026-10-09 09:02:46 INFO imstat:::: -- minimum value [min]: -0.022671 Jy/beam 2026-10-09 09:02:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [1509, 773, 0, 0] 2026-10-09 09:02:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [1708, 965, 0, 0] 2026-10-09 09:02:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.302, +40.06.02.372, I, 999980841.3Hz 2026-10-09 09:02:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:51:28.525, +40.31.07.260, I, 999980841.3Hz 2026-10-09 09:02:46 INFO imstat:::: -- Sum of pixel values [sum]: 641.87 Jy/beam 2026-10-09 09:02:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1619.58 Jy/beam.Jy/beam 2026-10-09 09:02:46 INFO imstat:::: Statistics --- 2026-10-09 09:02:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.000153034 Jy/beam 2026-10-09 09:02:46 INFO imstat:::: -- Variance of the pixel values : 0.000386116 Jy/beam 2026-10-09 09:02:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0196498 Jy/beam 2026-10-09 09:02:46 INFO imstat:::: -- Root mean square [rms]: 0.0196504 Jy/beam 2026-10-09 09:02:46 INFO imstat:::: -- Median of the pixel values [median]: 4.62212e-06 Jy/beam 2026-10-09 09:02:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.003161 Jy/beam 2026-10-09 09:02:46 INFO imstat:::: -- IQR [quartile]: 0.00632194 Jy/beam 2026-10-09 09:02:46 INFO imstat:::: -- First quartile [q1]: -0.00315522 Jy/beam 2026-10-09 09:02:46 INFO imstat:::: -- Third quartile [q3]: 0.00316673 Jy/beam 2026-10-09 09:02:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:02:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:02:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:02:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:02:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:02:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:02:46 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 2026-10-09 09:02:46 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:02:45.744151 End time: 2026-10-09 09:02:46.115938 2026-10-09 09:02:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:02:46 INFO imstat::::casa ########################################## 2026-10-09 09:02:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:02:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:02:46 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) 2026-10-09 09:02:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:02:46 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:02:46 2026****** 2026-10-09 09:02:46 INFO ImageFitter::fit+ 2026-10-09 09:02:46 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:02:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_orig.image 2026-10-09 09:02:46 INFO ImageFitter::fit+ --- region: 2026-10-09 09:02:46 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:02:46 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:02:46 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:02:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:02:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:02:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:02:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:02:46 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) 2026-10-09 09:02:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29832 Jy 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00459192 Jy 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85855 Jy 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00458731 Jy 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ Fit on im_orig.image component 0 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.9885 +/- 0.0032 s (0.0367 arcsec along great circle) 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.0594 +/- 0.0281 arcsec 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- ra: 1509.4535 +/- 0.0046 pixels 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- dec: 772.7181 +/- 0.0035 pixels 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.4778 +/- 0.0014 arcmin 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.2915 +/- 0.0011 arcmin 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.42 +/- 0.26 deg 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.70 arcsec 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.54 arcsec 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- position angle: -89.60 deg 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ Component is a point source 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ An upper limit on its size cannot be determined 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.0049 +/- 0.0079 Jy 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- Peak: 5.0102 +/- 0.0046 Jy/beam 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:02:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9808 MHz (29.97982 cm) 2026-10-09 09:02:46 INFO phaseshift::::casa ########################################## 2026-10-09 09:02:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:02:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-09 09:02:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:02:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:02:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:02:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:02:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:02:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:02:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:02:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:02:46 INFO MSTransformManager::open Select data 2026-10-09 09:02:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:02:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:02:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-09 09:02:53 INFO phaseshift::::casa Shift phase center 2026-10-09 09:02:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:02:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:02:46.208061 End time: 2026-10-09 09:02:57.519557 2026-10-09 09:02:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:02:58 INFO phaseshift::::casa ########################################## 2026-10-09 09:02:58 INFO tclean::::casa ########################################## 2026-10-09 09:02:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:02:58 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:02:58 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:02:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:02:58 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:02:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:02:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:02:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:02:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:02:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:02:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:02:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:02:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:02:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:03:00 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:03:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027342 2026-10-09 09:03:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:03:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:03:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:03:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:03:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:03:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:03:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:03:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:03:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:03:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:03:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:03:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:03:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:03:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:03:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:03:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:03:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:03:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:03:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:03:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:03:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:03:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:03:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:03:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:03:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:03:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:03:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:03:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:03:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:03:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:03:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:03:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:03:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:03:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:03:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:03:17 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:03:19 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:02:57.681170 End time: 2026-10-09 09:03:19.259114 2026-10-09 09:03:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:03:19 INFO tclean::::casa ########################################## 2026-10-09 09:03:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:03:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:03:19 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:03:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:03:19 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:03:19 2026****** 2026-10-09 09:03:19 INFO ImageFitter::fit+ 2026-10-09 09:03:19 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:03:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:03:19 INFO ImageFitter::fit+ --- region: 2026-10-09 09:03:19 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:03:19 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:03:19 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:03:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:03:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:03:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:03:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:03:19 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:03:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:03:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:03:19 INFO imstat::::casa ########################################## 2026-10-09 09:03:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:03:19 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:03:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:03:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:03:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:03:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:03:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:03:19 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:03:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:03:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:03:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:03:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:03:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:03:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:03:19 INFO imstat:::: Values --- 2026-10-09 09:03:19 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:03:19 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:03:19 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:03:19 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-09 09:03:19 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:03:19 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:03:19 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:03:19 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:03:19 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:03:19 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:03:19 INFO imstat:::: Statistics --- 2026-10-09 09:03:19 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:03:19 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:03:19 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:03:19 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:03:19 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-09 09:03:19 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-09 09:03:19 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-09 09:03:19 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-09 09:03:19 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-09 09:03:19 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:03:19 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:03:19 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:03:19 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:03:19 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:03:19 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:03:19 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 2026-10-09 09:03:19 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:03:19.337222 End time: 2026-10-09 09:03:19.373475 2026-10-09 09:03:19 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:03:19 INFO imstat::::casa ########################################## 2026-10-09 09:03:19 INFO phaseshift::::casa ########################################## 2026-10-09 09:03:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:03:19 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 02:40:24.0000' ) 2026-10-09 09:03:19 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:03:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:03:19 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:03:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:03:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:03:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:03:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:03:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:03:19 INFO MSTransformManager::open Select data 2026-10-09 09:03:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:03:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 09:03:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 02:40:24.0000' successfully parsed 2026-10-09 09:03:27 INFO phaseshift::::casa Shift phase center 2026-10-09 09:03:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:03:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:03:19.390051 End time: 2026-10-09 09:03:28.180223 2026-10-09 09:03:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:03:28 INFO phaseshift::::casa ########################################## 2026-10-09 09:03:28 INFO tclean::::casa ########################################## 2026-10-09 09:03:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:03:28 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:03:28 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:03:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:03:28 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:03:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:03:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:03:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:03:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:03:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:03:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:03:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:03:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:03:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:03:30 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:03:30 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025407 2026-10-09 09:03:30 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:03:30 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:03:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:03:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:03:32 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:03:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:03:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:03:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:03:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:03:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:03:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:03:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:03:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:03:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:03:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:03:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:03:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:03:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:03:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:03:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:03:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:03:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:03:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:03:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:03:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:03:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:03:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:03:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:03:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:03:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:03:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:03:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:03:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:03:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:03:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:03:40 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:03:41 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:03:28.236711 End time: 2026-10-09 09:03:41.488857 2026-10-09 09:03:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:03:41 INFO tclean::::casa ########################################## 2026-10-09 09:03:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:03:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:03:42 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) 2026-10-09 09:03:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:03:42 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:03:42 2026****** 2026-10-09 09:03:42 INFO ImageFitter::fit+ 2026-10-09 09:03:42 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:03:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:03:42 INFO ImageFitter::fit+ --- region: 2026-10-09 09:03:42 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:03:42 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:03:42 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:03:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:03:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:03:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:03:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:03:42 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) 2026-10-09 09:03:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:03:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:03:42 INFO imstat::::casa ########################################## 2026-10-09 09:03:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:03:42 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 ) 2026-10-09 09:03:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:03:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:03:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:03:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:03:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:03:42 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) 2026-10-09 09:03:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:03:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:03:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:03:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:03:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:03:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:03:42 INFO imstat:::: Values --- 2026-10-09 09:03:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:03:42 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:03:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:03:42 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-09 09:03:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:03:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:03:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:03:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:03:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:03:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:03:42 INFO imstat:::: Statistics --- 2026-10-09 09:03:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:03:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:03:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:03:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:03:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-09 09:03:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-09 09:03:42 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-09 09:03:42 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-09 09:03:42 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-09 09:03:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:03:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:03:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:03:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:03:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:03:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:03:42 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 2026-10-09 09:03:42 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:03:41.558219 End time: 2026-10-09 09:03:41.583394 2026-10-09 09:03:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:03:42 INFO imstat::::casa ########################################## 2026-10-09 09:03:42 INFO phaseshift::::casa ########################################## 2026-10-09 09:03:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:03:42 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.100000000deg' ) 2026-10-09 09:03:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:03:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:03:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:03:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:03:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:03:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:03:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:03:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:03:42 INFO MSTransformManager::open Select data 2026-10-09 09:03:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:03:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:03:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.100000000deg' successfully parsed 2026-10-09 09:03:44 INFO phaseshift::::casa Shift phase center 2026-10-09 09:03:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:03:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:03:41.599993 End time: 2026-10-09 09:03:45.421250 2026-10-09 09:03:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:03:45 INFO phaseshift::::casa ########################################## 2026-10-09 09:03:45 INFO tclean::::casa ########################################## 2026-10-09 09:03:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:03:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:03:45 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:03:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:03:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:03:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:03:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:03:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:03:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:03:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:03:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:03:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:03:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:03:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:03:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:03:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025357 2026-10-09 09:03:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:03:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:03:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:03:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:03:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:03:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:03:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:03:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:03:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:03:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:03:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:03:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:03:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:03:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:03:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:03:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:03:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:03:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:03:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:03:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:03:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:03:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:03:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:03:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:03:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:03:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:03:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:03:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:03:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:03:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:03:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:03:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:03:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:03:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:03:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:03:59 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:04:02 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:03:45.465517 End time: 2026-10-09 09:04:01.937513 2026-10-09 09:04:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:04:02 INFO tclean::::casa ########################################## 2026-10-09 09:04:02 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:04:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:04:02 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) 2026-10-09 09:04:02 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:04:02 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:04:02 2026****** 2026-10-09 09:04:02 INFO ImageFitter::fit+ 2026-10-09 09:04:02 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:04:02 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:04:02 INFO ImageFitter::fit+ --- region: 2026-10-09 09:04:02 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:04:02 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:04:02 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:04:02 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:04:02 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:04:02 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:04:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:04:02 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) 2026-10-09 09:04:02 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:04:02 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:04:02 INFO imstat::::casa ########################################## 2026-10-09 09:04:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:04:02 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 ) 2026-10-09 09:04:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:04:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:04:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:04:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:04:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:04:02 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:04:02 INFO imstat:::: Values --- 2026-10-09 09:04:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:04:02 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:04:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:04:02 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-09 09:04:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:04:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:04:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:04:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:04:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:04:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:04:02 INFO imstat:::: Statistics --- 2026-10-09 09:04:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:04:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:04:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:04:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:04:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-09 09:04:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-09 09:04:02 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-09 09:04:02 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-09 09:04:02 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:04:02 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-09 09:04:02 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:04:02.015952 End time: 2026-10-09 09:04:02.050614 2026-10-09 09:04:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:04:02 INFO imstat::::casa ########################################## 2026-10-09 09:04:02 INFO phaseshift::::casa ########################################## 2026-10-09 09:04:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:04:02 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 0.699877030rad' ) 2026-10-09 09:04:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:04:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:04:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:04:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:04:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:04:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:04:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:04:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:04:02 INFO MSTransformManager::open Select data 2026-10-09 09:04:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:04:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:04:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 0.699877030rad' successfully parsed 2026-10-09 09:04:06 INFO phaseshift::::casa Shift phase center 2026-10-09 09:04:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:04:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:04:02.066689 End time: 2026-10-09 09:04:07.572232 2026-10-09 09:04:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:04:08 INFO phaseshift::::casa ########################################## 2026-10-09 09:04:08 INFO tclean::::casa ########################################## 2026-10-09 09:04:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:04:08 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:04:08 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:04:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:04:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:04:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:04:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:04:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:04:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:04:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:04:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:04:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:04:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:04:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:04:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:04:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02381 2026-10-09 09:04:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:04:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:04:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:04:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:04:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:04:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:04:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:04:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:04:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:04:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:04:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:04:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:04:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:04:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:04:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:04:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:04:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:04:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:04:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:04:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:04:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:04:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:04:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:04:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:04:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:04:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:04:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:04:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:04:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:04:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:04:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:04:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:04:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:04:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:04:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:04:24 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:04:26 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:04:07.628040 End time: 2026-10-09 09:04:25.719644 2026-10-09 09:04:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:04:26 INFO tclean::::casa ########################################## 2026-10-09 09:04:26 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:04:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:04:26 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) 2026-10-09 09:04:26 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:04:26 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:04:26 2026****** 2026-10-09 09:04:26 INFO ImageFitter::fit+ 2026-10-09 09:04:26 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:04:26 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:04:26 INFO ImageFitter::fit+ --- region: 2026-10-09 09:04:26 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:04:26 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:04:26 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:04:26 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:04:26 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:04:26 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:04:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:04:26 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) 2026-10-09 09:04:26 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:04:26 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:04:26 INFO imstat::::casa ########################################## 2026-10-09 09:04:26 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:04:26 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 ) 2026-10-09 09:04:26 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:04:26 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:04:26 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:04:26 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:04:26 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:04:26 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) 2026-10-09 09:04:26 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:04:26 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:04:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:04:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:04:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:04:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:04:26 INFO imstat:::: Values --- 2026-10-09 09:04:26 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:04:26 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:04:26 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:04:26 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-10-09 09:04:26 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:04:26 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:04:26 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:04:26 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 09:04:26 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:04:26 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:04:26 INFO imstat:::: Statistics --- 2026-10-09 09:04:26 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:04:26 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:04:26 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:04:26 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:04:26 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-10-09 09:04:26 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-09 09:04:26 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-10-09 09:04:26 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-10-09 09:04:26 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-10-09 09:04:26 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:04:26 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:04:26 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:04:26 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:04:26 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:04:26 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:04:26 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 2026-10-09 09:04:26 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:04:25.796437 End time: 2026-10-09 09:04:25.837249 2026-10-09 09:04:26 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:04:26 INFO imstat::::casa ########################################## 2026-10-09 09:04:26 INFO phaseshift::::casa ########################################## 2026-10-09 09:04:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:04:26 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 40d06m00' ) 2026-10-09 09:04:26 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:04:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:04:26 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:04:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:04:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:04:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:04:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:04:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:04:26 INFO MSTransformManager::open Select data 2026-10-09 09:04:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:04:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:04:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40d06m00' successfully parsed 2026-10-09 09:04:34 INFO phaseshift::::casa Shift phase center 2026-10-09 09:04:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:04:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:04:25.854024 End time: 2026-10-09 09:04:35.553849 2026-10-09 09:04:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:04:36 INFO phaseshift::::casa ########################################## 2026-10-09 09:04:36 INFO tclean::::casa ########################################## 2026-10-09 09:04:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:04:36 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:04:36 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:04:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:04:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:04:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:04:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:04:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:04:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:04:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:04:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:04:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:04:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:04:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:04:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:04:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027272 2026-10-09 09:04:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:04:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:04:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:04:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:04:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:04:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:04:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:04:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:04:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:04:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:04:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:04:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:04:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:04:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:04:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:04:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:04:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:04:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:04:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:04:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:04:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:04:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:04:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:04:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:04:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:04:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:04:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:04:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:04:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:04:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:04:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:04:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:04:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:04:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:04:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:04:50 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:04:53 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:04:35.613545 End time: 2026-10-09 09:04:52.726796 2026-10-09 09:04:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:04:53 INFO tclean::::casa ########################################## 2026-10-09 09:04:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:04:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:04:53 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) 2026-10-09 09:04:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:04:53 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:04:53 2026****** 2026-10-09 09:04:53 INFO ImageFitter::fit+ 2026-10-09 09:04:53 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:04:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:04:53 INFO ImageFitter::fit+ --- region: 2026-10-09 09:04:53 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:04:53 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:04:53 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:04:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:04:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:04:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:04:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:04:53 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) 2026-10-09 09:04:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:04:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:04:53 INFO imstat::::casa ########################################## 2026-10-09 09:04:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:04:53 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 ) 2026-10-09 09:04:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:04:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:04:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:04:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:04:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:04:53 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) 2026-10-09 09:04:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:04:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:04:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:04:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:04:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:04:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:04:53 INFO imstat:::: Values --- 2026-10-09 09:04:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:04:53 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:04:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:04:53 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-09 09:04:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:04:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:04:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:04:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:04:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:04:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:04:53 INFO imstat:::: Statistics --- 2026-10-09 09:04:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:04:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:04:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:04:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:04:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-09 09:04:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-09 09:04:53 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-09 09:04:53 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-09 09:04:53 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-09 09:04:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:04:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:04:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:04:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:04:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:04:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:04:53 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 2026-10-09 09:04:53 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:04:52.804060 End time: 2026-10-09 09:04:52.833197 2026-10-09 09:04:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:04:53 INFO imstat::::casa ########################################## 2026-10-09 09:04:53 INFO phaseshift::::casa ########################################## 2026-10-09 09:04:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:04:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 02:40:24.0000' ) 2026-10-09 09:04:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:04:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:04:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:04:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:04:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:04:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:04:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:04:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:04:53 INFO MSTransformManager::open Select data 2026-10-09 09:04:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:04:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 09:04:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 02:40:24.0000' successfully parsed 2026-10-09 09:04:57 INFO phaseshift::::casa Shift phase center 2026-10-09 09:04:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:04:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:04:52.854631 End time: 2026-10-09 09:04:58.568360 2026-10-09 09:04:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:04:59 INFO phaseshift::::casa ########################################## 2026-10-09 09:04:59 INFO tclean::::casa ########################################## 2026-10-09 09:04:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:04:59 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:04:59 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:04:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:04:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:04:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:04:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:04:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:04:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:04:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:04:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:04:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:04:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:04:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:05:02 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:05:02 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024585 2026-10-09 09:05:02 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:05:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:05:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:05:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:05:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:05:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:05:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:05:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:05:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:05:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:05:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:05:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:05:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:05:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:05:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:05:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:05:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:05:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:05:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:05:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:05:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:05:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:05:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:05:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:05:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:05:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:05:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:05:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:05:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:05:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:05:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:05:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:05:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:05:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:05:15 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:05:16 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:05:19 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:04:58.628279 End time: 2026-10-09 09:05:18.542611 2026-10-09 09:05:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:05:19 INFO tclean::::casa ########################################## 2026-10-09 09:05:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:05:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:05:19 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:05:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:05:19 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:05:19 2026****** 2026-10-09 09:05:19 INFO ImageFitter::fit+ 2026-10-09 09:05:19 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:05:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:05:19 INFO ImageFitter::fit+ --- region: 2026-10-09 09:05:19 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:05:19 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:05:19 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:05:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:05:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:05:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:05:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:05:19 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:05:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:05:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:05:19 INFO imstat::::casa ########################################## 2026-10-09 09:05:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:05:19 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:05:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:05:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:05:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:05:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:05:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:05:19 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:05:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:05:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:05:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:05:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:05:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:05:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:05:19 INFO imstat:::: Values --- 2026-10-09 09:05:19 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:05:19 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:05:19 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:05:19 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-09 09:05:19 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:05:19 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:05:19 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:05:19 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:05:19 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:05:19 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:05:19 INFO imstat:::: Statistics --- 2026-10-09 09:05:19 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:05:19 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:05:19 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:05:19 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:05:19 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-09 09:05:19 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-09 09:05:19 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-09 09:05:19 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-09 09:05:19 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-09 09:05:19 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:05:19 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:05:19 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:05:19 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:05:19 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:05:19 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:05:19 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 2026-10-09 09:05:19 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:05:18.619366 End time: 2026-10-09 09:05:18.645358 2026-10-09 09:05:19 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:05:19 INFO imstat::::casa ########################################## 2026-10-09 09:05:19 INFO phaseshift::::casa ########################################## 2026-10-09 09:05:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:05:19 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40.100000000deg' ) 2026-10-09 09:05:19 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:05:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:05:19 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:05:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:05:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:05:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:05:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:05:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:05:19 INFO MSTransformManager::open Select data 2026-10-09 09:05:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:05:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:05:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40.100000000deg' successfully parsed 2026-10-09 09:05:25 INFO phaseshift::::casa Shift phase center 2026-10-09 09:05:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:05:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:05:18.662104 End time: 2026-10-09 09:05:26.107723 2026-10-09 09:05:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:05:26 INFO phaseshift::::casa ########################################## 2026-10-09 09:05:26 INFO tclean::::casa ########################################## 2026-10-09 09:05:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:05:26 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:05:26 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:05:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:05:26 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:05:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:05:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:05:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:05:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:05:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:05:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:05:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:05:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:05:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:05:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:05:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027529 2026-10-09 09:05:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:05:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:05:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:05:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:05:32 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:05:32 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:05:32 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:05:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:05:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:05:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:05:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:05:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:05:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:05:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:05:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:05:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:05:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:05:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:05:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:05:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:05:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:05:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:05:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:05:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:05:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:05:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:05:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:05:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:05:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:05:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:05:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:05:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:05:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:05:42 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:05:43 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:05:44 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:05:46 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:05:26.156769 End time: 2026-10-09 09:05:46.164845 2026-10-09 09:05:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:05:46 INFO tclean::::casa ########################################## 2026-10-09 09:05:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:05:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:05:46 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:05:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:05:46 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:05:46 2026****** 2026-10-09 09:05:46 INFO ImageFitter::fit+ 2026-10-09 09:05:46 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:05:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:05:46 INFO ImageFitter::fit+ --- region: 2026-10-09 09:05:46 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:05:46 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:05:46 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:05:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:05:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:05:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:05:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:05:46 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:05:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:05:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:05:46 INFO imstat::::casa ########################################## 2026-10-09 09:05:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:05:46 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:05:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:05:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:05:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:05:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:05:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:05:46 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:05:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:05:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:05:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:05:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:05:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:05:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:05:46 INFO imstat:::: Values --- 2026-10-09 09:05:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:05:46 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:05:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:05:46 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-09 09:05:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:05:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:05:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:05:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:05:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:05:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:05:46 INFO imstat:::: Statistics --- 2026-10-09 09:05:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:05:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:05:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:05:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:05:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-09 09:05:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-09 09:05:46 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-09 09:05:46 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-09 09:05:46 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-09 09:05:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:05:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:05:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:05:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:05:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:05:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:05:46 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 2026-10-09 09:05:46 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:05:46.242346 End time: 2026-10-09 09:05:46.273418 2026-10-09 09:05:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:05:46 INFO imstat::::casa ########################################## 2026-10-09 09:05:46 INFO phaseshift::::casa ########################################## 2026-10-09 09:05:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:05:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 0.699877030rad' ) 2026-10-09 09:05:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:05:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:05:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:05:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:05:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:05:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:05:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:05:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:05:46 INFO MSTransformManager::open Select data 2026-10-09 09:05:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:05:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:05:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 0.699877030rad' successfully parsed 2026-10-09 09:05:52 INFO phaseshift::::casa Shift phase center 2026-10-09 09:05:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:05:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:05:46.297196 End time: 2026-10-09 09:05:52.665508 2026-10-09 09:05:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:05:53 INFO phaseshift::::casa ########################################## 2026-10-09 09:05:53 INFO tclean::::casa ########################################## 2026-10-09 09:05:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:05:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:05:53 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:05:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:05:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:05:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:05:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:05:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:05:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:05:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:05:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:05:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:05:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:05:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:05:54 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:05:54 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025241 2026-10-09 09:05:54 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:05:55 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:05:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:05:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:05:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:05:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:05:57 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:05:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:05:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:05:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:05:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:05:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:06:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:06:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:06:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:06:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:06:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:06:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:06:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:06:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:06:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:06:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:06:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:06:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:06:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:06:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:06:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:06:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:06:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:06:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:06:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:06:06 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:06:06 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:06:06 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:06:09 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:06:09 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:06:12 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:05:52.720572 End time: 2026-10-09 09:06:11.719291 2026-10-09 09:06:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:06:12 INFO tclean::::casa ########################################## 2026-10-09 09:06:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:06:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:06:12 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:06:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:06:12 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:06:12 2026****** 2026-10-09 09:06:12 INFO ImageFitter::fit+ 2026-10-09 09:06:12 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:06:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:06:12 INFO ImageFitter::fit+ --- region: 2026-10-09 09:06:12 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:06:12 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:06:12 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:06:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:06:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:06:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:06:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:06:12 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:06:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:06:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:06:12 INFO imstat::::casa ########################################## 2026-10-09 09:06:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:06:12 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:06:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:06:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:06:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:06:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:06:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:06:12 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:06:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:06:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:06:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:06:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:06:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:06:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:06:12 INFO imstat:::: Values --- 2026-10-09 09:06:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:06:12 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:06:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:06:12 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-10-09 09:06:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:06:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:06:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:06:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 09:06:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:06:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:06:12 INFO imstat:::: Statistics --- 2026-10-09 09:06:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:06:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:06:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:06:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:06:12 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-10-09 09:06:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-09 09:06:12 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-10-09 09:06:12 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-10-09 09:06:12 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-10-09 09:06:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:06:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:06:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:06:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:06:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:06:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:06:12 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 2026-10-09 09:06:12 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:06:11.793749 End time: 2026-10-09 09:06:11.830982 2026-10-09 09:06:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:06:12 INFO imstat::::casa ########################################## 2026-10-09 09:06:12 INFO phaseshift::::casa ########################################## 2026-10-09 09:06:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:06:12 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40d06m00' ) 2026-10-09 09:06:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:06:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:06:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:06:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:06:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:06:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:06:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:06:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:06:12 INFO MSTransformManager::open Select data 2026-10-09 09:06:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:06:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:06:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40d06m00' successfully parsed 2026-10-09 09:06:16 INFO phaseshift::::casa Shift phase center 2026-10-09 09:06:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:06:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:06:11.846505 End time: 2026-10-09 09:06:17.622108 2026-10-09 09:06:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:06:18 INFO phaseshift::::casa ########################################## 2026-10-09 09:06:18 INFO tclean::::casa ########################################## 2026-10-09 09:06:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:06:18 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:06:18 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:06:18 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:06:18 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:06:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:06:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:06:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:06:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:06:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:06:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:06:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:06:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:06:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:06:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:06:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026717 2026-10-09 09:06:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:06:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:06:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:06:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:06:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:06:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:06:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:06:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:06:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:06:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:06:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:06:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:06:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:06:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:06:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:06:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:06:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:06:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:06:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:06:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:06:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:06:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:06:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:06:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:06:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:06:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:06:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:06:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:06:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:06:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:06:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:06:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:06:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:06:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:06:33 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:06:34 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:06:36 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:06:17.680090 End time: 2026-10-09 09:06:35.583047 2026-10-09 09:06:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:06:36 INFO tclean::::casa ########################################## 2026-10-09 09:06:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:06:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:06:36 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) 2026-10-09 09:06:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:06:36 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:06:36 2026****** 2026-10-09 09:06:36 INFO ImageFitter::fit+ 2026-10-09 09:06:36 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:06:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:06:36 INFO ImageFitter::fit+ --- region: 2026-10-09 09:06:36 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:06:36 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:06:36 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:06:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:06:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:06:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:06:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:06:36 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) 2026-10-09 09:06:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:06:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:06:36 INFO imstat::::casa ########################################## 2026-10-09 09:06:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:06:36 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 ) 2026-10-09 09:06:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:06:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:06:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:06:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:06:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:06:36 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) 2026-10-09 09:06:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:06:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:06:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:06:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:06:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:06:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:06:36 INFO imstat:::: Values --- 2026-10-09 09:06:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:06:36 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:06:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:06:36 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-10-09 09:06:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:06:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:06:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:06:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:06:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:06:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:06:36 INFO imstat:::: Statistics --- 2026-10-09 09:06:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:06:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:06:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:06:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:06:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-10-09 09:06:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-09 09:06:36 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-10-09 09:06:36 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-09 09:06:36 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-10-09 09:06:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:06:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:06:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:06:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:06:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:06:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:06:36 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 2026-10-09 09:06:36 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:06:35.654042 End time: 2026-10-09 09:06:35.679979 2026-10-09 09:06:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:06:36 INFO imstat::::casa ########################################## 2026-10-09 09:06:36 INFO phaseshift::::casa ########################################## 2026-10-09 09:06:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:06:36 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 02:40:24.0000' ) 2026-10-09 09:06:36 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:06:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:06:36 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:06:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:06:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:06:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:06:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:06:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:06:36 INFO MSTransformManager::open Select data 2026-10-09 09:06:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:06:40 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 ".". 2026-10-09 09:06:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 02:40:24.0000' successfully parsed 2026-10-09 09:06:40 INFO phaseshift::::casa Shift phase center 2026-10-09 09:06:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:06:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:06:35.696344 End time: 2026-10-09 09:06:42.945344 2026-10-09 09:06:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:06:43 INFO phaseshift::::casa ########################################## 2026-10-09 09:06:43 INFO tclean::::casa ########################################## 2026-10-09 09:06:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:06:43 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:06:43 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:06:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:06:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:06:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:06:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:06:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:06:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:06:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:06:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:06:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:06:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:06:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:06:45 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:06:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027476 2026-10-09 09:06:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:06:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:06:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:06:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:06:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:06:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:06:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:06:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:06:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:06:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:06:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:06:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:06:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:06:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:06:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:06:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:06:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:06:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:06:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:06:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:06:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:06:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:06:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:06:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:06:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:06:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:06:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:06:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:06:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:06:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:06:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:06:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:06:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:06:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:06:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:06:58 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:07:00 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:06:43.005013 End time: 2026-10-09 09:07:00.151153 2026-10-09 09:07:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:07:00 INFO tclean::::casa ########################################## 2026-10-09 09:07:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:07:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:07:00 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) 2026-10-09 09:07:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:07:00 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:07:00 2026****** 2026-10-09 09:07:00 INFO ImageFitter::fit+ 2026-10-09 09:07:00 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:07:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:07:00 INFO ImageFitter::fit+ --- region: 2026-10-09 09:07:00 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:07:00 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:07:00 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:07:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:07:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:07:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:07:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:07:00 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) 2026-10-09 09:07:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:07:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:07:00 INFO imstat::::casa ########################################## 2026-10-09 09:07:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:07:00 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 ) 2026-10-09 09:07:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:07:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:07:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:07:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:07:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:07:00 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) 2026-10-09 09:07:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:07:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:07:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:07:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:07:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:07:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:07:00 INFO imstat:::: Values --- 2026-10-09 09:07:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:07:00 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:07:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:07:00 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-10-09 09:07:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:07:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:07:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:07:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:07:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:07:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:07:00 INFO imstat:::: Statistics --- 2026-10-09 09:07:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:07:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:07:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:07:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:07:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-10-09 09:07:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-09 09:07:00 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-10-09 09:07:00 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-09 09:07:00 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-10-09 09:07:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:07:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:07:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:07:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:07:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:07:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:07:00 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 2026-10-09 09:07:00 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:07:00.211497 End time: 2026-10-09 09:07:00.243615 2026-10-09 09:07:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:07:00 INFO imstat::::casa ########################################## 2026-10-09 09:07:00 INFO phaseshift::::casa ########################################## 2026-10-09 09:07:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:07:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40.100000000deg' ) 2026-10-09 09:07:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:07:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:07:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:07:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:07:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:07:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:07:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:07:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:07:00 INFO MSTransformManager::open Select data 2026-10-09 09:07:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:07:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:07:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40.100000000deg' successfully parsed 2026-10-09 09:07:04 INFO phaseshift::::casa Shift phase center 2026-10-09 09:07:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:07:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:07:00.256569 End time: 2026-10-09 09:07:05.421288 2026-10-09 09:07:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:07:05 INFO phaseshift::::casa ########################################## 2026-10-09 09:07:05 INFO tclean::::casa ########################################## 2026-10-09 09:07:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:07:05 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:07:05 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:07:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:07:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:07:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:07:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:07:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:07:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:07:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:07:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:07:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:07:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:07:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:07:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:07:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027323 2026-10-09 09:07:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:07:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:07:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:07:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:07:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:07:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:07:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:07:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:07:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:07:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:07:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:07:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:07:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:07:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:07:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:07:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:07:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:07:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:07:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:07:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:07:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:07:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:07:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:07:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:07:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:07:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:07:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:07:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:07:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:07:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:07:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:07:19 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:07:19 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:07:19 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:07:20 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:07:21 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:07:22 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:07:05.477328 End time: 2026-10-09 09:07:22.131243 2026-10-09 09:07:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:07:22 INFO tclean::::casa ########################################## 2026-10-09 09:07:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:07:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:07:22 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) 2026-10-09 09:07:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:07:22 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:07:22 2026****** 2026-10-09 09:07:22 INFO ImageFitter::fit+ 2026-10-09 09:07:22 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:07:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:07:22 INFO ImageFitter::fit+ --- region: 2026-10-09 09:07:22 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:07:22 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:07:22 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:07:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:07:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:07:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:07:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:07:22 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) 2026-10-09 09:07:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:07:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:07:22 INFO imstat::::casa ########################################## 2026-10-09 09:07:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:07:22 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 ) 2026-10-09 09:07:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:07:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:07:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:07:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:07:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:07:22 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) 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:07:22 INFO imstat:::: Values --- 2026-10-09 09:07:22 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:07:22 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:07:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:07:22 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-10-09 09:07:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:07:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:07:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:07:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:07:22 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:07:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:07:22 INFO imstat:::: Statistics --- 2026-10-09 09:07:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:07:22 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:07:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:07:22 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:07:22 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-10-09 09:07:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-09 09:07:22 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-10-09 09:07:22 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-09 09:07:22 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:07:22 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777580e-05 4.999996e+00 2026-10-09 09:07:22 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:07:22.207859 End time: 2026-10-09 09:07:22.234495 2026-10-09 09:07:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:07:22 INFO imstat::::casa ########################################## 2026-10-09 09:07:22 INFO phaseshift::::casa ########################################## 2026-10-09 09:07:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:07:22 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 0.699877030rad' ) 2026-10-09 09:07:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:07:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:07:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:07:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:07:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:07:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:07:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:07:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:07:22 INFO MSTransformManager::open Select data 2026-10-09 09:07:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:07:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:07:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 0.699877030rad' successfully parsed 2026-10-09 09:07:27 INFO phaseshift::::casa Shift phase center 2026-10-09 09:07:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:07:29 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:07:22.251367 End time: 2026-10-09 09:07:28.687598 2026-10-09 09:07:29 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:07:29 INFO phaseshift::::casa ########################################## 2026-10-09 09:07:29 INFO tclean::::casa ########################################## 2026-10-09 09:07:29 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:07:29 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:07:29 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:07:29 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:07:29 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:07:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:07:29 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:07:29 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:07:29 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:07:29 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:07:29 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:07:29 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:07:29 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:07:29 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:07:31 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:07:31 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026829 2026-10-09 09:07:31 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:07:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:07:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:07:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:07:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:07:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:07:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:07:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:07:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:07:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:07:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:07:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:07:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:07:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:07:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:07:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:07:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:07:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:07:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:07:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:07:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:07:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:07:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:07:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:07:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:07:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:07:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:07:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:07:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:07:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:07:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:07:44 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:07:44 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:07:44 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:07:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:07:46 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:07:50 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:07:28.743003 End time: 2026-10-09 09:07:50.357164 2026-10-09 09:07:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:07:50 INFO tclean::::casa ########################################## 2026-10-09 09:07:50 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:07:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:07:50 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) 2026-10-09 09:07:50 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:07:50 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:07:50 2026****** 2026-10-09 09:07:50 INFO ImageFitter::fit+ 2026-10-09 09:07:50 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:07:50 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:07:50 INFO ImageFitter::fit+ --- region: 2026-10-09 09:07:50 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:07:50 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:07:50 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:07:50 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:07:50 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:07:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:07:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:07:50 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) 2026-10-09 09:07:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:07:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:07:50 INFO imstat::::casa ########################################## 2026-10-09 09:07:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:07:50 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:07:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:07:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:07:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:07:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:07:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:07:50 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) 2026-10-09 09:07:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:07:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:07:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:07:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:07:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:07:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:07:50 INFO imstat:::: Values --- 2026-10-09 09:07:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:07:50 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:07:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:07:50 INFO imstat:::: -- minimum value [min]: -7.77738e-05 Jy/beam 2026-10-09 09:07:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:07:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:07:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:07:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:07:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:07:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:07:50 INFO imstat:::: Statistics --- 2026-10-09 09:07:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:07:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:07:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:07:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:07:50 INFO imstat:::: -- Median of the pixel values [median]: -1.86662e-05 Jy/beam 2026-10-09 09:07:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73577e-05 Jy/beam 2026-10-09 09:07:50 INFO imstat:::: -- IQR [quartile]: 3.56242e-05 Jy/beam 2026-10-09 09:07:50 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-09 09:07:50 INFO imstat:::: -- Third quartile [q3]: 1.11673e-06 Jy/beam 2026-10-09 09:07:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:07:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:07:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:07:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:07:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:07:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:07:50 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 2026-10-09 09:07:50 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:07:50.436206 End time: 2026-10-09 09:07:50.469473 2026-10-09 09:07:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:07:50 INFO imstat::::casa ########################################## 2026-10-09 09:07:50 INFO phaseshift::::casa ########################################## 2026-10-09 09:07:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:07:50 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40d06m00' ) 2026-10-09 09:07:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:07:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:07:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:07:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:07:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:07:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:07:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:07:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:07:51 INFO MSTransformManager::open Select data 2026-10-09 09:07:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:07:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:07:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40d06m00' successfully parsed 2026-10-09 09:07:55 INFO phaseshift::::casa Shift phase center 2026-10-09 09:07:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:07:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:07:50.496272 End time: 2026-10-09 09:07:56.427990 2026-10-09 09:07:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:07:56 INFO phaseshift::::casa ########################################## 2026-10-09 09:07:56 INFO tclean::::casa ########################################## 2026-10-09 09:07:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:07:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:07:56 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:07:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:07:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:07:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:07:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:07:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:07:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:07:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:07:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:07:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:07:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:07:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:07:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:07:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02537 2026-10-09 09:07:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:07:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:07:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:08:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:08:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:08:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:08:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:08:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:08:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:08:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:08:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:08:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:08:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:08:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:08:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:08:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:08:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:08:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:08:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:08:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:08:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:08:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:08:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:08:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:08:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:08:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:08:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:08:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:08:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:08:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:08:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:08:11 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:08:11 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:08:11 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:08:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:08:13 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:08:14 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:07:56.487377 End time: 2026-10-09 09:08:14.296190 2026-10-09 09:08:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:08:14 INFO tclean::::casa ########################################## 2026-10-09 09:08:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:08:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:08:14 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) 2026-10-09 09:08:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:08:14 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:08:14 2026****** 2026-10-09 09:08:14 INFO ImageFitter::fit+ 2026-10-09 09:08:14 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:08:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:08:14 INFO ImageFitter::fit+ --- region: 2026-10-09 09:08:14 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:08:14 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:08:14 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:08:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:08:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:08:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:08:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:08:14 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) 2026-10-09 09:08:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:08:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:08:14 INFO imstat::::casa ########################################## 2026-10-09 09:08:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:08:14 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 ) 2026-10-09 09:08:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:08:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:08:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:08:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:08:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:08:14 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) 2026-10-09 09:08:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:08:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:08:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:08:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:08:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:08:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:08:14 INFO imstat:::: Values --- 2026-10-09 09:08:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:08:14 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:08:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:08:14 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-09 09:08:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:08:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:08:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:08:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 09:08:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:08:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:08:14 INFO imstat:::: Statistics --- 2026-10-09 09:08:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:08:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:08:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:08:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:08:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-10-09 09:08:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-10-09 09:08:14 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-10-09 09:08:14 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-10-09 09:08:14 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-10-09 09:08:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:08:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:08:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:08:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:08:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:08:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:08:14 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 2026-10-09 09:08:14 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:08:14.375070 End time: 2026-10-09 09:08:14.401362 2026-10-09 09:08:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:08:14 INFO imstat::::casa ########################################## 2026-10-09 09:08:14 INFO phaseshift::::casa ########################################## 2026-10-09 09:08:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:08:14 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 02:40:24.0000' ) 2026-10-09 09:08:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:08:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:08:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:08:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:08:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:08:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:08:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:08:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:08:14 INFO MSTransformManager::open Select data 2026-10-09 09:08:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:08:18 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 ".". 2026-10-09 09:08:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 02:40:24.0000' successfully parsed 2026-10-09 09:08:18 INFO phaseshift::::casa Shift phase center 2026-10-09 09:08:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:08:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:08:14.418140 End time: 2026-10-09 09:08:18.823108 2026-10-09 09:08:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:08:19 INFO phaseshift::::casa ########################################## 2026-10-09 09:08:19 INFO tclean::::casa ########################################## 2026-10-09 09:08:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:08:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:08:19 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:08:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:08:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:08:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:08:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:08:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:08:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:08:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:08:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:08:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:08:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:08:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:08:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:08:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024944 2026-10-09 09:08:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:08:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:08:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:08:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:08:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:08:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:08:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:08:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:08:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:08:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:08:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:08:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:08:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:08:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:08:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:08:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:08:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:08:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:08:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:08:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:08:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:08:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:08:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:08:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:08:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:08:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:08:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:08:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:08:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:08:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:08:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:08:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:08:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:08:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:08:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:08:37 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:08:39 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:08:18.882467 End time: 2026-10-09 09:08:38.709981 2026-10-09 09:08:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:08:39 INFO tclean::::casa ########################################## 2026-10-09 09:08:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:08:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:08:39 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) 2026-10-09 09:08:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:08:39 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:08:39 2026****** 2026-10-09 09:08:39 INFO ImageFitter::fit+ 2026-10-09 09:08:39 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:08:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:08:39 INFO ImageFitter::fit+ --- region: 2026-10-09 09:08:39 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:08:39 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:08:39 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:08:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:08:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:08:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:08:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:08:39 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) 2026-10-09 09:08:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:08:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:08:39 INFO imstat::::casa ########################################## 2026-10-09 09:08:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:08:39 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 ) 2026-10-09 09:08:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:08:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:08:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:08:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:08:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:08:39 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:08:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:08:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:08:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:08:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:08:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:08:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:08:39 INFO imstat:::: Values --- 2026-10-09 09:08:39 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:08:39 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:08:39 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:08:39 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-09 09:08:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:08:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:08:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:08:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 09:08:39 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:08:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:08:39 INFO imstat:::: Statistics --- 2026-10-09 09:08:39 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:08:39 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:08:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:08:39 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:08:39 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-10-09 09:08:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-10-09 09:08:39 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-10-09 09:08:39 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-10-09 09:08:39 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-10-09 09:08:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:08:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:08:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:08:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:08:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:08:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:08:39 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 2026-10-09 09:08:39 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:08:38.787737 End time: 2026-10-09 09:08:38.821359 2026-10-09 09:08:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:08:39 INFO imstat::::casa ########################################## 2026-10-09 09:08:39 INFO phaseshift::::casa ########################################## 2026-10-09 09:08:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:08:39 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40.100000000deg' ) 2026-10-09 09:08:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:08:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:08:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:08:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:08:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:08:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:08:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:08:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:08:39 INFO MSTransformManager::open Select data 2026-10-09 09:08:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:08:43 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:08:43 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40.100000000deg' successfully parsed 2026-10-09 09:08:43 INFO phaseshift::::casa Shift phase center 2026-10-09 09:08:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:08:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:08:38.848473 End time: 2026-10-09 09:08:44.725099 2026-10-09 09:08:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:08:45 INFO phaseshift::::casa ########################################## 2026-10-09 09:08:45 INFO tclean::::casa ########################################## 2026-10-09 09:08:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:08:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:08:45 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:08:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:08:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:08:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:08:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:08:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:08:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:08:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:08:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:08:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:08:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:08:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:08:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:08:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023505 2026-10-09 09:08:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:08:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:08:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:08:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:08:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:08:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:08:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:08:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:08:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:08:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:08:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:08:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:08:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:08:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:08:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:08:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:08:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:08:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:08:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:08:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:08:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:08:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:08:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:08:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:08:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:08:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:08:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:08:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:08:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:08:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:09:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:09:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:09:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:09:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:09:02 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:09:02 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:09:05 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:08:44.784659 End time: 2026-10-09 09:09:05.110795 2026-10-09 09:09:05 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:09:05 INFO tclean::::casa ########################################## 2026-10-09 09:09:05 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:09:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:09:05 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:09:05 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:09:05 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:09:05 2026****** 2026-10-09 09:09:05 INFO ImageFitter::fit+ 2026-10-09 09:09:05 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:09:05 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:09:05 INFO ImageFitter::fit+ --- region: 2026-10-09 09:09:05 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:09:05 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:09:05 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:09:05 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:09:05 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:09:05 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:09:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:09:05 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:09:05 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:09:05 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:09:05 INFO imstat::::casa ########################################## 2026-10-09 09:09:05 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:09:05 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 ) 2026-10-09 09:09:05 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:09:05 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:09:05 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:09:05 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:09:05 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:09:05 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) 2026-10-09 09:09:05 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:09:05 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:09:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:09:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:09:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:09:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:09:05 INFO imstat:::: Values --- 2026-10-09 09:09:05 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:09:05 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:09:05 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:09:05 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-09 09:09:05 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:09:05 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:09:05 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:09:05 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 09:09:05 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:09:05 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:09:05 INFO imstat:::: Statistics --- 2026-10-09 09:09:05 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:09:05 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:09:05 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:09:05 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:09:05 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-10-09 09:09:05 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-10-09 09:09:05 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-10-09 09:09:05 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-10-09 09:09:05 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-10-09 09:09:05 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:09:05 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:09:05 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:09:05 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:09:05 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:09:05 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:09:05 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 2026-10-09 09:09:05 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:09:05.185070 End time: 2026-10-09 09:09:05.211782 2026-10-09 09:09:05 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:09:05 INFO imstat::::casa ########################################## 2026-10-09 09:09:05 INFO phaseshift::::casa ########################################## 2026-10-09 09:09:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:09:05 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 0.699877030rad' ) 2026-10-09 09:09:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:09:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:09:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:09:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:09:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:09:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:09:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:09:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:09:05 INFO MSTransformManager::open Select data 2026-10-09 09:09:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:09:09 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:09:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 0.699877030rad' successfully parsed 2026-10-09 09:09:09 INFO phaseshift::::casa Shift phase center 2026-10-09 09:09:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:09:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:09:05.228490 End time: 2026-10-09 09:09:10.381805 2026-10-09 09:09:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:09:10 INFO phaseshift::::casa ########################################## 2026-10-09 09:09:10 INFO tclean::::casa ########################################## 2026-10-09 09:09:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:09:10 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:09:10 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:09:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:09:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:09:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:09:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:09:11 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:09:11 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:09:11 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:09:11 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:09:11 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:09:11 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:09:11 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:09:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:09:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027341 2026-10-09 09:09:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:09:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:09:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:09:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:09:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:09:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:09:16 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:09:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:09:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:09:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:09:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:09:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:09:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:09:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:09:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:09:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:09:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:09:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:09:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:09:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:09:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:09:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:09:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:09:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:09:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:09:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:09:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:09:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:09:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:09:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:09:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:09:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:09:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:09:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:09:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:09:26 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:09:29 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:09:10.435299 End time: 2026-10-09 09:09:29.451156 2026-10-09 09:09:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:09:29 INFO tclean::::casa ########################################## 2026-10-09 09:09:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:09:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:09:29 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) 2026-10-09 09:09:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:09:29 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:09:29 2026****** 2026-10-09 09:09:29 INFO ImageFitter::fit+ 2026-10-09 09:09:29 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:09:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:09:29 INFO ImageFitter::fit+ --- region: 2026-10-09 09:09:29 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:09:29 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:09:29 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:09:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:09:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:09:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:09:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:09:30 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:09:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:09:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:09:30 INFO imstat::::casa ########################################## 2026-10-09 09:09:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:09:30 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:09:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:09:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:09:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:09:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:09:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:09:30 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:09:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:09:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:09:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:09:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:09:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:09:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:09:30 INFO imstat:::: Values --- 2026-10-09 09:09:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:09:30 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:09:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:09:30 INFO imstat:::: -- minimum value [min]: -7.77793e-05 Jy/beam 2026-10-09 09:09:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:09:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:09:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:09:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 09:09:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:09:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:09:30 INFO imstat:::: Statistics --- 2026-10-09 09:09:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:09:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:09:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:09:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:09:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-10-09 09:09:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73592e-05 Jy/beam 2026-10-09 09:09:30 INFO imstat:::: -- IQR [quartile]: 3.55982e-05 Jy/beam 2026-10-09 09:09:30 INFO imstat:::: -- First quartile [q1]: -3.45035e-05 Jy/beam 2026-10-09 09:09:30 INFO imstat:::: -- Third quartile [q3]: 1.09469e-06 Jy/beam 2026-10-09 09:09:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:09:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:09:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:09:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:09:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:09:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:09:30 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 2026-10-09 09:09:30 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:09:29.525741 End time: 2026-10-09 09:09:29.558046 2026-10-09 09:09:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:09:30 INFO imstat::::casa ########################################## 2026-10-09 09:09:31 INFO phaseshift::::casa ########################################## 2026-10-09 09:09:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:09:31 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40d06m0.0019' ) 2026-10-09 09:09:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:09:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:09:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:09:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:09:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:09:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:09:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:09:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:09:31 INFO MSTransformManager::open Select data 2026-10-09 09:09:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:09:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:09:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40d06m0.0019' successfully parsed 2026-10-09 09:09:35 INFO phaseshift::::casa Shift phase center 2026-10-09 09:09:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:09:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:09:30.543490 End time: 2026-10-09 09:09:35.642275 2026-10-09 09:09:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:09:36 INFO phaseshift::::casa ########################################## 2026-10-09 09:09:36 INFO tclean::::casa ########################################## 2026-10-09 09:09:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:09:36 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:09:36 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:09:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:09:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:09:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:09:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:09:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:09:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:09:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:09:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:09:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:09:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:09:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:09:37 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:09:37 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026445 2026-10-09 09:09:37 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:09:37 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:09:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:09:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:09:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:09:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:09:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:09:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:09:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:09:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:09:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:09:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:09:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:09:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:09:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:09:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:09:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:09:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:09:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:09:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:09:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:09:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:09:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:09:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:09:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:09:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:09:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:09:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:09:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:09:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:09:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:09:48 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:09:48 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:09:48 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:09:49 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:09:50 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:09:52 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:09:35.698466 End time: 2026-10-09 09:09:51.670176 2026-10-09 09:09:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:09:52 INFO tclean::::casa ########################################## 2026-10-09 09:09:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:09:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:09:52 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) 2026-10-09 09:09:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:09:52 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:09:52 2026****** 2026-10-09 09:09:52 INFO ImageFitter::fit+ 2026-10-09 09:09:52 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:09:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:09:52 INFO ImageFitter::fit+ --- region: 2026-10-09 09:09:52 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:09:52 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:09:52 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:09:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:09:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:09:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:09:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:09:52 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) 2026-10-09 09:09:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:09:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:09:52 INFO imstat::::casa ########################################## 2026-10-09 09:09:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:09:52 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 ) 2026-10-09 09:09:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:09:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:09:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:09:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:09:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:09:52 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) 2026-10-09 09:09:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:09:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:09:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:09:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:09:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:09:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:09:52 INFO imstat:::: Values --- 2026-10-09 09:09:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:09:52 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:09:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:09:52 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-09 09:09:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:09:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:09:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:09:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 09:09:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:09:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:09:52 INFO imstat:::: Statistics --- 2026-10-09 09:09:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:09:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:09:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:09:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:09:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-10-09 09:09:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-10-09 09:09:52 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-10-09 09:09:52 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-10-09 09:09:52 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-10-09 09:09:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:09:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:09:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:09:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:09:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:09:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:09:52 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 2026-10-09 09:09:52 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:09:51.748960 End time: 2026-10-09 09:09:51.776178 2026-10-09 09:09:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:09:52 INFO imstat::::casa ########################################## 2026-10-09 09:09:52 INFO phaseshift::::casa ########################################## 2026-10-09 09:09:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:09:52 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 02:40:24.0001' ) 2026-10-09 09:09:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:09:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:09:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:09:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:09:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:09:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:09:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:09:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:09:52 INFO MSTransformManager::open Select data 2026-10-09 09:09:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:09:56 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 ".". 2026-10-09 09:09:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 02:40:24.0001' successfully parsed 2026-10-09 09:09:56 INFO phaseshift::::casa Shift phase center 2026-10-09 09:09:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:09:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:09:51.792765 End time: 2026-10-09 09:09:57.565964 2026-10-09 09:09:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:09:58 INFO phaseshift::::casa ########################################## 2026-10-09 09:09:58 INFO tclean::::casa ########################################## 2026-10-09 09:09:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:09:58 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:09:58 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:09:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:09:58 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:09:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:09:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:09:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:09:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:09:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:09:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:09:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:09:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:09:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:09:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:10:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027389 2026-10-09 09:10:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:10:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:10:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:10:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:10:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:10:03 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:10:03 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:10:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:10:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:10:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:10:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:10:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:10:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:10:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:10:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:10:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:10:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:10:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:10:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:10:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:10:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:10:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:10:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:10:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:10:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:10:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:10:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:10:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:10:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:10:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:10:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:10:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:10:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:10:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:10:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:10:13 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:10:15 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:09:57.625812 End time: 2026-10-09 09:10:15.220981 2026-10-09 09:10:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:10:15 INFO tclean::::casa ########################################## 2026-10-09 09:10:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:10:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:10:15 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:10:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:10:15 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:10:15 2026****** 2026-10-09 09:10:15 INFO ImageFitter::fit+ 2026-10-09 09:10:15 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:10:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:10:15 INFO ImageFitter::fit+ --- region: 2026-10-09 09:10:15 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:10:15 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:10:15 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:10:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:10:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:10:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:10:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:10:15 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) 2026-10-09 09:10:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:10:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:10:15 INFO imstat::::casa ########################################## 2026-10-09 09:10:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:10:15 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:10:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:10:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:10:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:10:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:10:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:10:15 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:10:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:10:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:10:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:10:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:10:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:10:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:10:15 INFO imstat:::: Values --- 2026-10-09 09:10:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:10:15 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:10:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:10:15 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-10-09 09:10:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:10:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:10:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:10:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-09 09:10:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:10:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:10:15 INFO imstat:::: Statistics --- 2026-10-09 09:10:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:10:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:10:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:10:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:10:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-10-09 09:10:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-10-09 09:10:15 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-10-09 09:10:15 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-10-09 09:10:15 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-10-09 09:10:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:10:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:10:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:10:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:10:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:10:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:10:15 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 2026-10-09 09:10:15 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:10:15.292400 End time: 2026-10-09 09:10:15.318515 2026-10-09 09:10:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:10:15 INFO imstat::::casa ########################################## 2026-10-09 09:10:15 INFO phaseshift::::casa ########################################## 2026-10-09 09:10:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:10:15 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40.100000528deg' ) 2026-10-09 09:10:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:10:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:10:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:10:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:10:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:10:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:10:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:10:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:10:15 INFO MSTransformManager::open Select data 2026-10-09 09:10:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:10:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:10:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40.100000528deg' successfully parsed 2026-10-09 09:10:20 INFO phaseshift::::casa Shift phase center 2026-10-09 09:10:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:10:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:10:15.334949 End time: 2026-10-09 09:10:21.585269 2026-10-09 09:10:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:10:22 INFO phaseshift::::casa ########################################## 2026-10-09 09:10:22 INFO tclean::::casa ########################################## 2026-10-09 09:10:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:10:22 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:10:22 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:10:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:10:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:10:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:10:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:10:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:10:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:10:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:10:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:10:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:10:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:10:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:10:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:10:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.018317 2026-10-09 09:10:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:10:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:10:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:10:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:10:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:10:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:10:26 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:10:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:10:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:10:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:10:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:10:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:10:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:10:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:10:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:10:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:10:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:10:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:10:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:10:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:10:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:10:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:10:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:10:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:10:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:10:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:10:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:10:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:10:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:10:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:10:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:10:37 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:10:37 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:10:37 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:10:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:10:39 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:10:42 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:10:21.644883 End time: 2026-10-09 09:10:41.797570 2026-10-09 09:10:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:10:42 INFO tclean::::casa ########################################## 2026-10-09 09:10:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:10:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:10:42 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) 2026-10-09 09:10:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:10:42 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:10:42 2026****** 2026-10-09 09:10:42 INFO ImageFitter::fit+ 2026-10-09 09:10:42 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:10:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:10:42 INFO ImageFitter::fit+ --- region: 2026-10-09 09:10:42 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:10:42 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:10:42 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:10:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:10:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:10:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:10:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:10:42 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) 2026-10-09 09:10:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:10:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:10:42 INFO imstat::::casa ########################################## 2026-10-09 09:10:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:10:42 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 ) 2026-10-09 09:10:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:10:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:10:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:10:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:10:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:10:42 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) 2026-10-09 09:10:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:10:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:10:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:10:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:10:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:10:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:10:42 INFO imstat:::: Values --- 2026-10-09 09:10:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:10:42 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:10:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:10:42 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-09 09:10:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:10:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:10:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:10:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 09:10:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:10:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:10:42 INFO imstat:::: Statistics --- 2026-10-09 09:10:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:10:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:10:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:10:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:10:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-09 09:10:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-10-09 09:10:42 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-10-09 09:10:42 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-10-09 09:10:42 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-10-09 09:10:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:10:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:10:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:10:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:10:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:10:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:10:42 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 2026-10-09 09:10:42 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:10:41.877613 End time: 2026-10-09 09:10:41.917924 2026-10-09 09:10:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:10:42 INFO imstat::::casa ########################################## 2026-10-09 09:10:42 INFO phaseshift::::casa ########################################## 2026-10-09 09:10:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:10:42 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 0.699877039rad' ) 2026-10-09 09:10:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:10:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:10:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:10:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:10:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:10:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:10:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:10:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:10:42 INFO MSTransformManager::open Select data 2026-10-09 09:10:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:10:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:10:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 0.699877039rad' successfully parsed 2026-10-09 09:10:47 INFO phaseshift::::casa Shift phase center 2026-10-09 09:10:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:10:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:10:41.933702 End time: 2026-10-09 09:10:48.011790 2026-10-09 09:10:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:10:48 INFO phaseshift::::casa ########################################## 2026-10-09 09:10:48 INFO tclean::::casa ########################################## 2026-10-09 09:10:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:10:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:10:48 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:10:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:10:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:10:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:10:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:10:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:10:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:10:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:10:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:10:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:10:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:10:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:10:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:10:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027669 2026-10-09 09:10:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:10:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:10:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:10:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:10:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:10:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:10:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:10:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:10:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:10:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:10:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:10:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:10:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:10:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:10:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:10:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:10:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:10:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:10:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:10:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:10:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:10:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:10:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:10:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:10:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:10:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:10:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:10:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:10:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:10:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:10:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:10:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:10:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:10:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:11:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:11:01 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:11:03 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:10:48.065589 End time: 2026-10-09 09:11:02.812072 2026-10-09 09:11:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:11:03 INFO tclean::::casa ########################################## 2026-10-09 09:11:03 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:11:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:11:03 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) 2026-10-09 09:11:03 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:11:03 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:11:03 2026****** 2026-10-09 09:11:03 INFO ImageFitter::fit+ 2026-10-09 09:11:03 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:11:03 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:11:03 INFO ImageFitter::fit+ --- region: 2026-10-09 09:11:03 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:11:03 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:11:03 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:11:03 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:11:03 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:11:03 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:11:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:11:03 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) 2026-10-09 09:11:03 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:11:03 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:11:03 INFO imstat::::casa ########################################## 2026-10-09 09:11:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:11:03 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 ) 2026-10-09 09:11:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:11:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:11:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:11:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:11:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:11:03 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) 2026-10-09 09:11:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:11:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:11:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:11:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:11:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:11:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:11:03 INFO imstat:::: Values --- 2026-10-09 09:11:03 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:11:03 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:11:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:11:03 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-10-09 09:11:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:11:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:11:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:11:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 09:11:03 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:11:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:11:03 INFO imstat:::: Statistics --- 2026-10-09 09:11:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:11:03 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:11:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:11:03 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:11:03 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-10-09 09:11:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-10-09 09:11:03 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-10-09 09:11:03 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-09 09:11:03 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-10-09 09:11:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:11:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:11:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:11:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:11:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:11:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:11:03 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 2026-10-09 09:11:03 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:11:02.891735 End time: 2026-10-09 09:11:02.924940 2026-10-09 09:11:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:11:03 INFO imstat::::casa ########################################## 2026-10-09 09:11:03 INFO phaseshift::::casa ########################################## 2026-10-09 09:11:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:11:03 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 19:53:49.9980 40d06m0.0019' ) 2026-10-09 09:11:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:11:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:11:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:11:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:11:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:11:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:11:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:11:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:11:03 INFO MSTransformManager::open Select data 2026-10-09 09:11:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:11:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:11:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40d06m0.0019' successfully parsed 2026-10-09 09:11:06 INFO phaseshift::::casa Shift phase center 2026-10-09 09:11:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:11:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:11:02.941306 End time: 2026-10-09 09:11:08.254529 2026-10-09 09:11:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:11:08 INFO phaseshift::::casa ########################################## 2026-10-09 09:11:08 INFO tclean::::casa ########################################## 2026-10-09 09:11:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:11:08 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:11:08 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:11:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:11:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:11:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:11:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:11:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:11:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:11:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:11:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:11:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:11:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:11:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:11:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:11:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027948 2026-10-09 09:11:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:11:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:11:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:11:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:11:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:11:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:11:14 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:11:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:11:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:11:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:11:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:11:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:11:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:11:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:11:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:11:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:11:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:11:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:11:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:11:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:11:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:11:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:11:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:11:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:11:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:11:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:11:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:11:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:11:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:11:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:11:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:11:24 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:11:24 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:11:24 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:11:25 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:11:26 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:11:29 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:11:08.311983 End time: 2026-10-09 09:11:28.512353 2026-10-09 09:11:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:11:29 INFO tclean::::casa ########################################## 2026-10-09 09:11:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:11:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:11:29 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) 2026-10-09 09:11:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:11:29 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:11:29 2026****** 2026-10-09 09:11:29 INFO ImageFitter::fit+ 2026-10-09 09:11:29 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:11:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:11:29 INFO ImageFitter::fit+ --- region: 2026-10-09 09:11:29 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:11:29 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:11:29 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:11:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:11:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:11:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:11:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:11:29 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) 2026-10-09 09:11:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:11:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:11:29 INFO imstat::::casa ########################################## 2026-10-09 09:11:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:11:29 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 ) 2026-10-09 09:11:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:11:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:11:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:11:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:11:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:11:29 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) 2026-10-09 09:11:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:11:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:11:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:11:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:11:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:11:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:11:29 INFO imstat:::: Values --- 2026-10-09 09:11:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:11:29 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:11:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:11:29 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-09 09:11:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:11:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:11:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:11:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 09:11:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:11:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:11:29 INFO imstat:::: Statistics --- 2026-10-09 09:11:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:11:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:11:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:11:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:11:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-10-09 09:11:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-10-09 09:11:29 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-10-09 09:11:29 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-10-09 09:11:29 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-10-09 09:11:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:11:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:11:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:11:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:11:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:11:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:11:29 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 2026-10-09 09:11:29 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:11:28.584060 End time: 2026-10-09 09:11:28.610303 2026-10-09 09:11:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:11:29 INFO imstat::::casa ########################################## 2026-10-09 09:11:29 INFO phaseshift::::casa ########################################## 2026-10-09 09:11:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:11:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 02:40:24.0001' ) 2026-10-09 09:11:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:11:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:11:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:11:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:11:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:11:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:11:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:11:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:11:29 INFO MSTransformManager::open Select data 2026-10-09 09:11:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:11:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 09:11:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 02:40:24.0001' successfully parsed 2026-10-09 09:11:32 INFO phaseshift::::casa Shift phase center 2026-10-09 09:11:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:11:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:11:28.626690 End time: 2026-10-09 09:11:33.329688 2026-10-09 09:11:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:11:33 INFO phaseshift::::casa ########################################## 2026-10-09 09:11:33 INFO tclean::::casa ########################################## 2026-10-09 09:11:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:11:33 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:11:33 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:11:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:11:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:11:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:11:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:11:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:11:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:11:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:11:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:11:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:11:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:11:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:11:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:11:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027499 2026-10-09 09:11:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:11:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:11:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:11:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:11:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:11:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:11:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:11:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:11:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:11:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:11:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:11:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:11:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:11:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:11:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:11:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:11:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:11:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:11:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:11:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:11:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:11:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:11:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:11:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:11:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:11:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:11:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:11:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:11:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:11:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:11:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:11:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:11:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:11:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:11:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:11:46 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:11:48 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:11:33.387839 End time: 2026-10-09 09:11:48.320343 2026-10-09 09:11:48 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:11:48 INFO tclean::::casa ########################################## 2026-10-09 09:11:48 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:11:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:11:48 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) 2026-10-09 09:11:48 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:11:48 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:11:48 2026****** 2026-10-09 09:11:48 INFO ImageFitter::fit+ 2026-10-09 09:11:48 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:11:48 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:11:48 INFO ImageFitter::fit+ --- region: 2026-10-09 09:11:48 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:11:48 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:11:48 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:11:48 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:11:48 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:11:48 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:11:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:11:48 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) 2026-10-09 09:11:48 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:11:48 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:11:48 INFO imstat::::casa ########################################## 2026-10-09 09:11:48 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:11:48 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 ) 2026-10-09 09:11:48 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:11:48 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:11:48 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:11:48 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:11:48 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:11:48 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) 2026-10-09 09:11:48 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:11:48 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:11:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:11:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:11:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:11:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:11:48 INFO imstat:::: Values --- 2026-10-09 09:11:48 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:11:48 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:11:48 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:11:48 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-10-09 09:11:48 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:11:48 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:11:48 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:11:48 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-09 09:11:48 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:11:48 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:11:48 INFO imstat:::: Statistics --- 2026-10-09 09:11:48 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:11:48 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:11:48 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:11:48 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:11:48 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-10-09 09:11:48 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-10-09 09:11:48 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-10-09 09:11:48 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-10-09 09:11:48 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-10-09 09:11:48 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:11:48 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:11:48 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:11:48 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:11:48 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:11:48 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:11:48 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 2026-10-09 09:11:48 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:11:48.400729 End time: 2026-10-09 09:11:48.432308 2026-10-09 09:11:48 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:11:48 INFO imstat::::casa ########################################## 2026-10-09 09:11:48 INFO phaseshift::::casa ########################################## 2026-10-09 09:11:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:11:48 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40.100000528deg' ) 2026-10-09 09:11:48 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:11:48 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:11:48 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:11:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:11:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:11:48 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:11:48 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:11:48 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:11:48 INFO MSTransformManager::open Select data 2026-10-09 09:11:48 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:11:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:11:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40.100000528deg' successfully parsed 2026-10-09 09:11:52 INFO phaseshift::::casa Shift phase center 2026-10-09 09:11:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:11:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:11:48.454761 End time: 2026-10-09 09:11:53.057341 2026-10-09 09:11:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:11:53 INFO phaseshift::::casa ########################################## 2026-10-09 09:11:53 INFO tclean::::casa ########################################## 2026-10-09 09:11:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:11:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:11:53 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:11:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:11:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:11:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:11:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:11:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:11:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:11:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:11:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:11:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:11:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:11:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:11:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:11:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025494 2026-10-09 09:11:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:11:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:11:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:11:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:11:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:11:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:11:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:11:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:11:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:12:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:12:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:12:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:12:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:12:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:12:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:12:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:12:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:12:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:12:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:12:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:12:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:12:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:12:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:12:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:12:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:12:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:12:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:12:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:12:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:12:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:12:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:12:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:12:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:12:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:12:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:12:07 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:12:08 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:11:53.113146 End time: 2026-10-09 09:12:08.016250 2026-10-09 09:12:08 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:12:08 INFO tclean::::casa ########################################## 2026-10-09 09:12:08 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:12:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:12:08 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) 2026-10-09 09:12:08 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:12:08 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:12:08 2026****** 2026-10-09 09:12:08 INFO ImageFitter::fit+ 2026-10-09 09:12:08 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:12:08 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:12:08 INFO ImageFitter::fit+ --- region: 2026-10-09 09:12:08 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:12:08 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:12:08 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:12:08 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:12:08 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:12:08 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:12:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:12:08 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) 2026-10-09 09:12:08 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:12:08 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:12:08 INFO imstat::::casa ########################################## 2026-10-09 09:12:08 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:12:08 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 ) 2026-10-09 09:12:08 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:12:08 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:12:08 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:12:08 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:12:08 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:12:08 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) 2026-10-09 09:12:08 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:12:08 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:12:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:12:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:12:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:12:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:12:08 INFO imstat:::: Values --- 2026-10-09 09:12:08 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:12:08 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:12:08 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:12:08 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-09 09:12:08 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:12:08 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:12:08 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:12:08 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 09:12:08 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:12:08 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:12:08 INFO imstat:::: Statistics --- 2026-10-09 09:12:08 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:12:08 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:12:08 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:12:08 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:12:08 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-09 09:12:08 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-10-09 09:12:08 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-10-09 09:12:08 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-10-09 09:12:08 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-10-09 09:12:08 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:12:08 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:12:08 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:12:08 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:12:08 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:12:08 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:12:08 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 2026-10-09 09:12:08 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:12:08.092010 End time: 2026-10-09 09:12:08.118647 2026-10-09 09:12:08 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:12:08 INFO imstat::::casa ########################################## 2026-10-09 09:12:08 INFO phaseshift::::casa ########################################## 2026-10-09 09:12:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:12:08 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 19:53:49.9980 0.699877039rad' ) 2026-10-09 09:12:08 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:12:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:12:08 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:12:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:12:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:12:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:12:08 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:12:08 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:12:08 INFO MSTransformManager::open Select data 2026-10-09 09:12:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:12:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:12:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 0.699877039rad' successfully parsed 2026-10-09 09:12:12 INFO phaseshift::::casa Shift phase center 2026-10-09 09:12:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:12:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:12:08.135334 End time: 2026-10-09 09:12:12.502236 2026-10-09 09:12:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:12:13 INFO phaseshift::::casa ########################################## 2026-10-09 09:12:13 INFO tclean::::casa ########################################## 2026-10-09 09:12:13 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:12:13 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:12:13 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:12:13 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:12:13 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:12:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:12:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:12:13 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:12:13 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:12:13 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:12:13 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:12:13 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:12:13 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:12:13 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:12:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:12:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027613 2026-10-09 09:12:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:12:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:12:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:12:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:12:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:12:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:12:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:12:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:12:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:12:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:12:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:12:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:12:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:12:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:12:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:12:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:12:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:12:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:12:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:12:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:12:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:12:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:12:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:12:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:12:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:12:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:12:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:12:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:12:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:12:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:12:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:12:26 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:12:26 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:12:26 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:12:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:12:27 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:12:29 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:12:12.554090 End time: 2026-10-09 09:12:29.079687 2026-10-09 09:12:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:12:29 INFO tclean::::casa ########################################## 2026-10-09 09:12:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:12:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:12:29 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) 2026-10-09 09:12:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:12:29 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:12:29 2026****** 2026-10-09 09:12:29 INFO ImageFitter::fit+ 2026-10-09 09:12:29 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:12:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:12:29 INFO ImageFitter::fit+ --- region: 2026-10-09 09:12:29 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:12:29 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:12:29 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:12:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:12:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:12:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:12:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:12:29 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) 2026-10-09 09:12:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:12:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:12:29 INFO imstat::::casa ########################################## 2026-10-09 09:12:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:12:29 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 ) 2026-10-09 09:12:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:12:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:12:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:12:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:12:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:12:29 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) 2026-10-09 09:12:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:12:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:12:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:12:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:12:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:12:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:12:29 INFO imstat:::: Values --- 2026-10-09 09:12:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:12:29 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:12:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:12:29 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-10-09 09:12:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:12:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:12:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:12:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 09:12:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:12:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:12:29 INFO imstat:::: Statistics --- 2026-10-09 09:12:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:12:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:12:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:12:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:12:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-10-09 09:12:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-10-09 09:12:29 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-10-09 09:12:29 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-09 09:12:29 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-10-09 09:12:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:12:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:12:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:12:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:12:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:12:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:12:29 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 2026-10-09 09:12:29 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:12:29.164968 End time: 2026-10-09 09:12:29.194112 2026-10-09 09:12:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:12:29 INFO imstat::::casa ########################################## 2026-10-09 09:12:29 INFO phaseshift::::casa ########################################## 2026-10-09 09:12:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:12:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40d06m0.0019' ) 2026-10-09 09:12:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:12:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:12:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:12:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:12:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:12:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:12:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:12:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:12:29 INFO MSTransformManager::open Select data 2026-10-09 09:12:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:12:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:12:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40d06m0.0019' successfully parsed 2026-10-09 09:12:33 INFO phaseshift::::casa Shift phase center 2026-10-09 09:12:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:12:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:12:29.211796 End time: 2026-10-09 09:12:33.997566 2026-10-09 09:12:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:12:34 INFO phaseshift::::casa ########################################## 2026-10-09 09:12:34 INFO tclean::::casa ########################################## 2026-10-09 09:12:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:12:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:12:34 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:12:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:12:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:12:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:12:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:12:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:12:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:12:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:12:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:12:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:12:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:12:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:12:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:12:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027448 2026-10-09 09:12:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:12:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:12:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:12:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:12:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:12:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:12:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:12:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:12:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:12:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:12:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:12:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:12:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:12:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:12:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:12:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:12:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:12:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:12:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:12:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:12:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:12:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:12:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:12:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:12:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:12:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:12:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:12:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:12:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:12:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:12:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:12:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:12:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:12:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:12:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:12:48 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:12:51 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:12:34.057223 End time: 2026-10-09 09:12:50.575290 2026-10-09 09:12:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:12:51 INFO tclean::::casa ########################################## 2026-10-09 09:12:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:12:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:12:51 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) 2026-10-09 09:12:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:12:51 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:12:51 2026****** 2026-10-09 09:12:51 INFO ImageFitter::fit+ 2026-10-09 09:12:51 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:12:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:12:51 INFO ImageFitter::fit+ --- region: 2026-10-09 09:12:51 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:12:51 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:12:51 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:12:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:12:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:12:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:12:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:12:51 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:12:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:12:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:12:51 INFO imstat::::casa ########################################## 2026-10-09 09:12:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:12:51 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:12:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:12:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:12:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:12:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:12:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:12:51 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:12:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:12:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:12:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:12:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:12:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:12:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:12:51 INFO imstat:::: Values --- 2026-10-09 09:12:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:12:51 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:12:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:12:51 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-09 09:12:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:12:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:12:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:12:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 09:12:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:12:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:12:51 INFO imstat:::: Statistics --- 2026-10-09 09:12:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:12:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:12:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:12:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:12:51 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-10-09 09:12:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-10-09 09:12:51 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-10-09 09:12:51 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-10-09 09:12:51 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-10-09 09:12:51 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:12:51 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:12:51 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:12:51 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:12:51 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:12:51 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:12:51 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 2026-10-09 09:12:51 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:12:50.650160 End time: 2026-10-09 09:12:50.681989 2026-10-09 09:12:51 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:12:51 INFO imstat::::casa ########################################## 2026-10-09 09:12:51 INFO phaseshift::::casa ########################################## 2026-10-09 09:12:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:12:51 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 02:40:24.0001' ) 2026-10-09 09:12:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:12:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:12:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:12:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:12:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:12:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:12:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:12:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:12:51 INFO MSTransformManager::open Select data 2026-10-09 09:12:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:12:56 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 ".". 2026-10-09 09:12:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 02:40:24.0001' successfully parsed 2026-10-09 09:12:56 INFO phaseshift::::casa Shift phase center 2026-10-09 09:12:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:12:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:12:50.698003 End time: 2026-10-09 09:12:57.404178 2026-10-09 09:12:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:12:57 INFO phaseshift::::casa ########################################## 2026-10-09 09:12:57 INFO tclean::::casa ########################################## 2026-10-09 09:12:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:12:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:12:57 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:12:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:12:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:12:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:12:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:12:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:12:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:12:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:12:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:12:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:12:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:12:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:12:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:12:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025379 2026-10-09 09:12:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:12:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:13:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:13:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:13:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:13:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:13:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:13:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:13:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:13:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:13:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:13:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:13:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:13:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:13:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:13:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:13:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:13:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:13:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:13:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:13:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:13:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:13:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:13:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:13:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:13:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:13:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:13:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:13:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:13:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:13:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:13:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:13:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:13:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:13:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:13:14 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:13:16 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:12:57.463137 End time: 2026-10-09 09:13:15.805987 2026-10-09 09:13:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:13:16 INFO tclean::::casa ########################################## 2026-10-09 09:13:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:13:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:13:16 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) 2026-10-09 09:13:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:13:16 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:13:16 2026****** 2026-10-09 09:13:16 INFO ImageFitter::fit+ 2026-10-09 09:13:16 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:13:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:13:16 INFO ImageFitter::fit+ --- region: 2026-10-09 09:13:16 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:13:16 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:13:16 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:13:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:13:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:13:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:13:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:13:16 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) 2026-10-09 09:13:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:13:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:13:16 INFO imstat::::casa ########################################## 2026-10-09 09:13:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:13:16 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 ) 2026-10-09 09:13:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:13:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:13:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:13:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:13:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:13:16 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) 2026-10-09 09:13:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:13:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:13:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:13:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:13:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:13:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:13:16 INFO imstat:::: Values --- 2026-10-09 09:13:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:13:16 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:13:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:13:16 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-10-09 09:13:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:13:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:13:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:13:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-09 09:13:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:13:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:13:16 INFO imstat:::: Statistics --- 2026-10-09 09:13:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:13:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:13:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:13:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:13:16 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-10-09 09:13:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-10-09 09:13:16 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-10-09 09:13:16 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-10-09 09:13:16 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-10-09 09:13:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:13:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:13:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:13:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:13:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:13:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:13:16 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 2026-10-09 09:13:16 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:13:15.889701 End time: 2026-10-09 09:13:15.921261 2026-10-09 09:13:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:13:16 INFO imstat::::casa ########################################## 2026-10-09 09:13:16 INFO phaseshift::::casa ########################################## 2026-10-09 09:13:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:13:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40.100000528deg' ) 2026-10-09 09:13:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:13:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:13:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:13:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:13:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:13:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:13:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:13:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:13:16 INFO MSTransformManager::open Select data 2026-10-09 09:13:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:13:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:13:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40.100000528deg' successfully parsed 2026-10-09 09:13:20 INFO phaseshift::::casa Shift phase center 2026-10-09 09:13:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:13:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:13:15.941038 End time: 2026-10-09 09:13:21.774815 2026-10-09 09:13:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:13:22 INFO phaseshift::::casa ########################################## 2026-10-09 09:13:22 INFO tclean::::casa ########################################## 2026-10-09 09:13:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:13:22 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:13:22 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:13:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:13:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:13:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:13:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:13:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:13:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:13:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:13:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:13:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:13:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:13:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:13:24 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:13:24 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027826 2026-10-09 09:13:24 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:13:24 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:13:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:13:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:13:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:13:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:13:27 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:13:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:13:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:13:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:13:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:13:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:13:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:13:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:13:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:13:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:13:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:13:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:13:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:13:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:13:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:13:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:13:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:13:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:13:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:13:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:13:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:13:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:13:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:13:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:13:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:13:37 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:13:37 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:13:37 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:13:38 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:13:39 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:13:41 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:13:21.830294 End time: 2026-10-09 09:13:40.834730 2026-10-09 09:13:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:13:41 INFO tclean::::casa ########################################## 2026-10-09 09:13:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:13:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:13:41 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) 2026-10-09 09:13:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:13:41 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:13:41 2026****** 2026-10-09 09:13:41 INFO ImageFitter::fit+ 2026-10-09 09:13:41 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:13:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:13:41 INFO ImageFitter::fit+ --- region: 2026-10-09 09:13:41 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:13:41 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:13:41 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:13:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:13:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:13:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:13:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:13:41 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) 2026-10-09 09:13:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:13:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:13:41 INFO imstat::::casa ########################################## 2026-10-09 09:13:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:13:41 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 ) 2026-10-09 09:13:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:13:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:13:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:13:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:13:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:13:41 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) 2026-10-09 09:13:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:13:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:13:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:13:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:13:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:13:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:13:41 INFO imstat:::: Values --- 2026-10-09 09:13:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:13:41 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:13:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:13:41 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-09 09:13:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:13:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:13:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:13:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 09:13:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:13:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:13:41 INFO imstat:::: Statistics --- 2026-10-09 09:13:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:13:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:13:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:13:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:13:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-09 09:13:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-10-09 09:13:41 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-10-09 09:13:41 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-10-09 09:13:41 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-10-09 09:13:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:13:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:13:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:13:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:13:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:13:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:13:41 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 2026-10-09 09:13:41 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:13:40.912334 End time: 2026-10-09 09:13:40.939453 2026-10-09 09:13:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:13:41 INFO imstat::::casa ########################################## 2026-10-09 09:13:41 INFO phaseshift::::casa ########################################## 2026-10-09 09:13:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:13:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 0.699877039rad' ) 2026-10-09 09:13:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:13:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:13:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:13:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:13:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:13:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:13:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:13:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:13:41 INFO MSTransformManager::open Select data 2026-10-09 09:13:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:13:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:13:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 0.699877039rad' successfully parsed 2026-10-09 09:13:45 INFO phaseshift::::casa Shift phase center 2026-10-09 09:13:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:13:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:13:40.956355 End time: 2026-10-09 09:13:46.043186 2026-10-09 09:13:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:13:46 INFO phaseshift::::casa ########################################## 2026-10-09 09:13:46 INFO tclean::::casa ########################################## 2026-10-09 09:13:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:13:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:13:46 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:13:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:13:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:13:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:13:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:13:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:13:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:13:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:13:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:13:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:13:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:13:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:13:48 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:13:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025542 2026-10-09 09:13:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:13:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:13:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:13:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:13:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:13:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:13:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:13:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:13:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:13:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:13:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:13:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:13:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:13:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:13:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:13:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:13:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:13:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:13:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:13:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:13:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:13:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:13:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:13:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:14:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:14:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:14:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:14:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:14:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:14:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:14:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:14:03 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:14:03 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:14:03 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:14:07 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:14:07 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:14:11 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:13:46.093423 End time: 2026-10-09 09:14:10.666847 2026-10-09 09:14:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:14:11 INFO tclean::::casa ########################################## 2026-10-09 09:14:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:14:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:14:11 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) 2026-10-09 09:14:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:14:11 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:14:11 2026****** 2026-10-09 09:14:11 INFO ImageFitter::fit+ 2026-10-09 09:14:11 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:14:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:14:11 INFO ImageFitter::fit+ --- region: 2026-10-09 09:14:11 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:14:11 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:14:11 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:14:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:14:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:14:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:14:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:14:11 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:14:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:14:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:14:11 INFO imstat::::casa ########################################## 2026-10-09 09:14:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:14:11 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 ) 2026-10-09 09:14:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:14:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:14:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:14:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:14:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:14:11 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) 2026-10-09 09:14:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:14:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:14:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:14:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:14:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:14:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:14:11 INFO imstat:::: Values --- 2026-10-09 09:14:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:14:11 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:14:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:14:11 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-10-09 09:14:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:14:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:14:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:14:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 09:14:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:14:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:14:11 INFO imstat:::: Statistics --- 2026-10-09 09:14:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:14:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:14:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:14:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:14:11 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-10-09 09:14:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-10-09 09:14:11 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-10-09 09:14:11 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-09 09:14:11 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-10-09 09:14:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:14:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:14:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:14:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:14:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:14:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:14:11 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 2026-10-09 09:14:11 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:14:10.744245 End time: 2026-10-09 09:14:10.771617 2026-10-09 09:14:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:14:11 INFO imstat::::casa ########################################## 2026-10-09 09:14:11 INFO phaseshift::::casa ########################################## 2026-10-09 09:14:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:14:11 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 40d06m0.0019' ) 2026-10-09 09:14:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:14:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:14:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:14:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:14:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:14:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:14:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:14:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:14:11 INFO MSTransformManager::open Select data 2026-10-09 09:14:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:14:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:14:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40d06m0.0019' successfully parsed 2026-10-09 09:14:18 INFO phaseshift::::casa Shift phase center 2026-10-09 09:14:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:14:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:14:10.788468 End time: 2026-10-09 09:14:20.159463 2026-10-09 09:14:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:14:20 INFO phaseshift::::casa ########################################## 2026-10-09 09:14:20 INFO tclean::::casa ########################################## 2026-10-09 09:14:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:14:20 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:14:20 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:14:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:14:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:14:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:14:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:14:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:14:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:14:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:14:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:14:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:14:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:14:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:14:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:14:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027485 2026-10-09 09:14:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:14:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:14:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:14:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:14:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:14:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:14:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:14:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:14:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:14:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:14:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:14:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:14:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:14:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:14:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:14:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:14:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:14:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:14:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:14:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:14:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:14:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:14:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:14:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:14:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:14:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:14:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:14:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:14:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:14:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:14:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:14:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:14:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:14:42 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:14:43 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:14:44 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:14:47 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:14:20.216408 End time: 2026-10-09 09:14:46.865396 2026-10-09 09:14:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:14:47 INFO tclean::::casa ########################################## 2026-10-09 09:14:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:14:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:14:47 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:14:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:14:47 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:14:47 2026****** 2026-10-09 09:14:47 INFO ImageFitter::fit+ 2026-10-09 09:14:47 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:14:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:14:47 INFO ImageFitter::fit+ --- region: 2026-10-09 09:14:47 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:14:47 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:14:47 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:14:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:14:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:14:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:14:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:14:47 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) 2026-10-09 09:14:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:14:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:14:47 INFO imstat::::casa ########################################## 2026-10-09 09:14:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:14:47 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:14:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:14:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:14:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:14:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:14:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:14:47 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:14:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:14:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:14:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:14:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:14:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:14:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:14:47 INFO imstat:::: Values --- 2026-10-09 09:14:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:14:47 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:14:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:14:47 INFO imstat:::: -- minimum value [min]: -7.77984e-05 Jy/beam 2026-10-09 09:14:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:14:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:14:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:14:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 09:14:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:14:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:14:47 INFO imstat:::: Statistics --- 2026-10-09 09:14:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:14:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:14:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:14:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:14:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86704e-05 Jy/beam 2026-10-09 09:14:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7365e-05 Jy/beam 2026-10-09 09:14:47 INFO imstat:::: -- IQR [quartile]: 3.56348e-05 Jy/beam 2026-10-09 09:14:47 INFO imstat:::: -- First quartile [q1]: -3.45131e-05 Jy/beam 2026-10-09 09:14:47 INFO imstat:::: -- Third quartile [q3]: 1.12172e-06 Jy/beam 2026-10-09 09:14:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:14:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:14:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:14:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:14:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:14:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:14:47 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 2026-10-09 09:14:47 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:14:46.945990 End time: 2026-10-09 09:14:46.973812 2026-10-09 09:14:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:14:47 INFO imstat::::casa ########################################## 2026-10-09 09:14:47 INFO phaseshift::::casa ########################################## 2026-10-09 09:14:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:14:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 02:40:24.0001' ) 2026-10-09 09:14:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:14:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:14:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:14:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:14:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:14:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:14:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:14:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:14:47 INFO MSTransformManager::open Select data 2026-10-09 09:14:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:14:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 09:14:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 02:40:24.0001' successfully parsed 2026-10-09 09:14:53 INFO phaseshift::::casa Shift phase center 2026-10-09 09:14:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:14:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:14:46.990646 End time: 2026-10-09 09:14:56.082453 2026-10-09 09:14:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:14:56 INFO phaseshift::::casa ########################################## 2026-10-09 09:14:56 INFO tclean::::casa ########################################## 2026-10-09 09:14:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:14:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:14:56 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:14:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:14:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:14:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:14:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:14:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:14:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:14:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:14:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:14:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:14:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:14:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:14:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:15:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028314 2026-10-09 09:15:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:15:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:15:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:15:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:15:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:15:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:15:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:15:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:15:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:15:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:15:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:15:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:15:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:15:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:15:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:15:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:15:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:15:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:15:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:15:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:15:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:15:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:15:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:15:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:15:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:15:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:15:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:15:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:15:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:15:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:15:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:15:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:15:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:15:18 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:15:19 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:15:20 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:15:23 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:14:56.132706 End time: 2026-10-09 09:15:23.363448 2026-10-09 09:15:23 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:15:23 INFO tclean::::casa ########################################## 2026-10-09 09:15:23 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:15:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:15:23 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:15:23 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:15:23 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:15:23 2026****** 2026-10-09 09:15:23 INFO ImageFitter::fit+ 2026-10-09 09:15:23 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:15:23 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:15:23 INFO ImageFitter::fit+ --- region: 2026-10-09 09:15:23 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:15:23 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:15:23 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:15:23 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:15:23 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:15:23 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:15:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:15:23 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) 2026-10-09 09:15:23 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116894 Jy 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126508 Jy 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:15:23 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:15:23 INFO imstat::::casa ########################################## 2026-10-09 09:15:23 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:15:23 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:15:23 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:15:23 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:15:23 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:15:23 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:15:23 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:15:23 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:15:23 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:15:23 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:15:23 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:15:23 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:15:23 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:15:23 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:15:23 INFO imstat:::: Values --- 2026-10-09 09:15:23 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:15:23 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:15:23 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:15:23 INFO imstat:::: -- minimum value [min]: -7.78076e-05 Jy/beam 2026-10-09 09:15:23 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:15:23 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:15:23 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:15:23 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-09 09:15:23 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:15:23 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:15:23 INFO imstat:::: Statistics --- 2026-10-09 09:15:23 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:15:23 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:15:23 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:15:23 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:15:23 INFO imstat:::: -- Median of the pixel values [median]: -1.86848e-05 Jy/beam 2026-10-09 09:15:23 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73951e-05 Jy/beam 2026-10-09 09:15:23 INFO imstat:::: -- IQR [quartile]: 3.56676e-05 Jy/beam 2026-10-09 09:15:23 INFO imstat:::: -- First quartile [q1]: -3.45186e-05 Jy/beam 2026-10-09 09:15:23 INFO imstat:::: -- Third quartile [q3]: 1.14894e-06 Jy/beam 2026-10-09 09:15:23 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:15:23 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:15:23 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:15:23 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:15:23 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:15:23 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:15:23 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 2026-10-09 09:15:23 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:15:23.435950 End time: 2026-10-09 09:15:23.462365 2026-10-09 09:15:23 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:15:23 INFO imstat::::casa ########################################## 2026-10-09 09:15:23 INFO phaseshift::::casa ########################################## 2026-10-09 09:15:23 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:15:23 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40.100000528deg' ) 2026-10-09 09:15:23 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:15:23 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:15:23 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:15:23 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:15:23 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:15:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:15:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:15:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:15:24 INFO MSTransformManager::open Select data 2026-10-09 09:15:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:15:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:15:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40.100000528deg' successfully parsed 2026-10-09 09:15:30 INFO phaseshift::::casa Shift phase center 2026-10-09 09:15:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:15:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:15:23.478766 End time: 2026-10-09 09:15:31.359801 2026-10-09 09:15:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:15:31 INFO phaseshift::::casa ########################################## 2026-10-09 09:15:31 INFO tclean::::casa ########################################## 2026-10-09 09:15:31 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:15:31 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:15:31 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:15:31 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:15:31 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:15:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:15:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:15:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:15:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:15:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:15:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:15:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:15:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:15:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:15:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:15:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027081 2026-10-09 09:15:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:15:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:15:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:15:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:15:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:15:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:15:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:15:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:15:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:15:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:15:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:15:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:15:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:15:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:15:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:15:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:15:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:15:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:15:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:15:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:15:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:15:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:15:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:15:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:15:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:15:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:15:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:15:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:15:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:15:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:15:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:15:48 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:15:48 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:15:48 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:15:49 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:15:49 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:15:51 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:15:31.413296 End time: 2026-10-09 09:15:51.067156 2026-10-09 09:15:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:15:51 INFO tclean::::casa ########################################## 2026-10-09 09:15:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:15:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:15:51 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) 2026-10-09 09:15:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:15:51 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:15:51 2026****** 2026-10-09 09:15:51 INFO ImageFitter::fit+ 2026-10-09 09:15:51 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:15:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:15:51 INFO ImageFitter::fit+ --- region: 2026-10-09 09:15:51 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:15:51 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:15:51 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:15:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:15:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:15:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:15:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:15:51 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:15:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116882 Jy 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:15:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:15:51 INFO imstat::::casa ########################################## 2026-10-09 09:15:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:15:51 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:15:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:15:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:15:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:15:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:15:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:15:51 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:15:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:15:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:15:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:15:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:15:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:15:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:15:51 INFO imstat:::: Values --- 2026-10-09 09:15:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:15:51 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:15:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:15:51 INFO imstat:::: -- minimum value [min]: -7.77982e-05 Jy/beam 2026-10-09 09:15:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:15:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:15:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:15:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 09:15:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:15:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:15:51 INFO imstat:::: Statistics --- 2026-10-09 09:15:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:15:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:15:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:15:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:15:51 INFO imstat:::: -- Median of the pixel values [median]: -1.86711e-05 Jy/beam 2026-10-09 09:15:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73646e-05 Jy/beam 2026-10-09 09:15:51 INFO imstat:::: -- IQR [quartile]: 3.56367e-05 Jy/beam 2026-10-09 09:15:51 INFO imstat:::: -- First quartile [q1]: -3.45138e-05 Jy/beam 2026-10-09 09:15:51 INFO imstat:::: -- Third quartile [q3]: 1.12291e-06 Jy/beam 2026-10-09 09:15:51 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:15:51 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:15:51 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:15:51 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:15:51 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:15:51 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:15:51 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 2026-10-09 09:15:51 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:15:51.144318 End time: 2026-10-09 09:15:51.177155 2026-10-09 09:15:51 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:15:51 INFO imstat::::casa ########################################## 2026-10-09 09:15:51 INFO phaseshift::::casa ########################################## 2026-10-09 09:15:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:15:51 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 0.699877039rad' ) 2026-10-09 09:15:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:15:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:15:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:15:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:15:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:15:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:15:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:15:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:15:51 INFO MSTransformManager::open Select data 2026-10-09 09:15:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:15:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:15:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 0.699877039rad' successfully parsed 2026-10-09 09:15:56 INFO phaseshift::::casa Shift phase center 2026-10-09 09:15:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:15:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:15:51.202080 End time: 2026-10-09 09:15:57.561939 2026-10-09 09:15:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:15:58 INFO phaseshift::::casa ########################################## 2026-10-09 09:15:58 INFO tclean::::casa ########################################## 2026-10-09 09:15:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:15:58 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:15:58 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:15:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:15:58 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:15:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:15:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:15:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:15:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:15:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:15:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:15:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:15:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:15:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:16:00 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:16:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024192 2026-10-09 09:16:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:16:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:16:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:16:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:16:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:16:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:16:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:16:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:16:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:16:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:16:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:16:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:16:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:16:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:16:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:16:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:16:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:16:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:16:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:16:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374443277716637, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:16:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:16:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:16:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:16:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:16:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:16:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852561634033918, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:16:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:16:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:16:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:16:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:16:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:16:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:16:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:16:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:16:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:16:17 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:16:21 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:15:57.598857 End time: 2026-10-09 09:16:20.559328 2026-10-09 09:16:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:16:21 INFO tclean::::casa ########################################## 2026-10-09 09:16:21 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:16:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:16:21 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) 2026-10-09 09:16:21 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:16:21 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:16:21 2026****** 2026-10-09 09:16:21 INFO ImageFitter::fit+ 2026-10-09 09:16:21 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:16:21 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:16:21 INFO ImageFitter::fit+ --- region: 2026-10-09 09:16:21 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:16:21 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:16:21 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:16:21 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:16:21 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:16:21 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:16:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:16:21 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) 2026-10-09 09:16:21 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:16:21 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:16:21 INFO imstat::::casa ########################################## 2026-10-09 09:16:21 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:16:21 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 ) 2026-10-09 09:16:21 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:16:21 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:16:21 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:16:21 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:16:21 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:16:21 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:16:21 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:16:21 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:16:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:16:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:16:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:16:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:16:21 INFO imstat:::: Values --- 2026-10-09 09:16:21 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:16:21 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:16:21 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:16:21 INFO imstat:::: -- minimum value [min]: -7.77898e-05 Jy/beam 2026-10-09 09:16:21 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:16:21 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:16:21 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:16:21 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-09 09:16:21 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:16:21 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:16:21 INFO imstat:::: Statistics --- 2026-10-09 09:16:21 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:16:21 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:16:21 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:16:21 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:16:21 INFO imstat:::: -- Median of the pixel values [median]: -1.86769e-05 Jy/beam 2026-10-09 09:16:21 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73662e-05 Jy/beam 2026-10-09 09:16:21 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-10-09 09:16:21 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-09 09:16:21 INFO imstat:::: -- Third quartile [q3]: 1.1187e-06 Jy/beam 2026-10-09 09:16:21 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:16:21 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:16:21 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:16:21 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:16:21 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:16:21 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:16:21 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 2026-10-09 09:16:21 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:16:20.644184 End time: 2026-10-09 09:16:20.680129 2026-10-09 09:16:21 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:16:21 INFO imstat::::casa ########################################## 2026-10-09 09:16:21 INFO phaseshift::::casa ########################################## 2026-10-09 09:16:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:16:21 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 +006d21m09.7433' ) 2026-10-09 09:16:21 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:16:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:16:21 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:16:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:16:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:16:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:16:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:16:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:16:21 INFO MSTransformManager::open Select data 2026-10-09 09:16:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:16:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:16:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 +006d21m09.7433' successfully parsed 2026-10-09 09:16:24 INFO phaseshift::::casa Shift phase center 2026-10-09 09:16:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:16:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:16:20.703300 End time: 2026-10-09 09:16:25.910125 2026-10-09 09:16:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:16:26 INFO phaseshift::::casa ########################################## 2026-10-09 09:16:26 INFO tclean::::casa ########################################## 2026-10-09 09:16:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:16:26 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:16:26 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:16:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:16:26 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:16:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:16:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:16:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:16:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:16:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:16:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:16:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:16:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:16:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:16:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:16:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02378 2026-10-09 09:16:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:16:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:16:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:16:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:16:32 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:16:32 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:16:32 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:16:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:16:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:16:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:16:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:16:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:16:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:16:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:16:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:16:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:16:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:16:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:16:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:16:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:16:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:16:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:16:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:16:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:16:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:16:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:16:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:16:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:16:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:16:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:16:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:16:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:16:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:16:42 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:16:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:16:44 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:16:47 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:16:25.966244 End time: 2026-10-09 09:16:47.282481 2026-10-09 09:16:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:16:47 INFO tclean::::casa ########################################## 2026-10-09 09:16:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:16:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:16:47 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) 2026-10-09 09:16:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:16:47 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:16:47 2026****** 2026-10-09 09:16:47 INFO ImageFitter::fit+ 2026-10-09 09:16:47 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:16:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:16:47 INFO ImageFitter::fit+ --- region: 2026-10-09 09:16:47 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:16:47 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:16:47 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:16:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:16:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:16:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:16:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:16:47 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) 2026-10-09 09:16:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:16:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:16:47 INFO imstat::::casa ########################################## 2026-10-09 09:16:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:16:47 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 ) 2026-10-09 09:16:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:16:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:16:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:16:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:16:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:16:47 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) 2026-10-09 09:16:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:16:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:16:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:16:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:16:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:16:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:16:47 INFO imstat:::: Values --- 2026-10-09 09:16:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:16:47 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:16:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:16:47 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-10-09 09:16:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:16:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:16:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:16:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:16:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:16:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:16:47 INFO imstat:::: Statistics --- 2026-10-09 09:16:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:16:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:16:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:16:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:16:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-10-09 09:16:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-10-09 09:16:47 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-10-09 09:16:47 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-10-09 09:16:47 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-10-09 09:16:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:16:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:16:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:16:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:16:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:16:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:16:47 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 2026-10-09 09:16:47 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:16:47.366826 End time: 2026-10-09 09:16:47.397745 2026-10-09 09:16:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:16:47 INFO imstat::::casa ########################################## 2026-10-09 09:16:47 INFO phaseshift::::casa ########################################## 2026-10-09 09:16:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:16:47 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 05h00m21.5326 00:25:24.6496' ) 2026-10-09 09:16:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:16:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:16:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:16:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:16:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:16:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:16:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:16:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:16:47 INFO MSTransformManager::open Select data 2026-10-09 09:16:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:16:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 09:16:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 00:25:24.6496' successfully parsed 2026-10-09 09:16:53 INFO phaseshift::::casa Shift phase center 2026-10-09 09:16:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:16:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:16:47.421264 End time: 2026-10-09 09:16:55.151074 2026-10-09 09:16:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:16:55 INFO phaseshift::::casa ########################################## 2026-10-09 09:16:55 INFO tclean::::casa ########################################## 2026-10-09 09:16:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:16:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:16:55 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:16:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:16:55 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:16:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:16:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:16:55 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:16:55 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:16:55 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:16:55 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:16:55 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:16:55 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:16:55 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:16:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:16:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027655 2026-10-09 09:16:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:16:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:16:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:17:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:17:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:17:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:17:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:17:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:17:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:17:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:17:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:17:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:17:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:17:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:17:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:17:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:17:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:17:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:17:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:17:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:17:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:17:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:17:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:17:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:17:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:17:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:17:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:17:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:17:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:17:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:17:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:17:08 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:17:08 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:17:08 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:17:09 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:17:09 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:17:11 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:16:55.205935 End time: 2026-10-09 09:17:10.742166 2026-10-09 09:17:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:17:11 INFO tclean::::casa ########################################## 2026-10-09 09:17:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:17:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:17:11 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) 2026-10-09 09:17:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:17:11 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:17:11 2026****** 2026-10-09 09:17:11 INFO ImageFitter::fit+ 2026-10-09 09:17:11 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:17:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:17:11 INFO ImageFitter::fit+ --- region: 2026-10-09 09:17:11 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:17:11 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:17:11 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:17:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:17:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:17:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:17:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:17:11 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:17:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:17:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:17:11 INFO imstat::::casa ########################################## 2026-10-09 09:17:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:17:11 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 ) 2026-10-09 09:17:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:17:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:17:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:17:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:17:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:17:11 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) 2026-10-09 09:17:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:17:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:17:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:17:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:17:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 09:17:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 09:17:11 INFO imstat:::: Values --- 2026-10-09 09:17:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:17:11 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:17:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:17:11 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-10-09 09:17:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:17:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:17:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:17:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:17:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:17:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:17:11 INFO imstat:::: Statistics --- 2026-10-09 09:17:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:17:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:17:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:17:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:17:11 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-10-09 09:17:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-10-09 09:17:11 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-10-09 09:17:11 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-10-09 09:17:11 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-10-09 09:17:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:17:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:17:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:17:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:17:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:17:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:17:11 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 2026-10-09 09:17:11 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:17:10.813776 End time: 2026-10-09 09:17:10.839542 2026-10-09 09:17:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:17:11 INFO imstat::::casa ########################################## 2026-10-09 09:17:11 INFO phaseshift::::casa ########################################## 2026-10-09 09:17:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:17:11 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 6.352706472deg' ) 2026-10-09 09:17:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:17:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:17:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:17:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:17:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:17:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:17:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:17:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:17:11 INFO MSTransformManager::open Select data 2026-10-09 09:17:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:17:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:17:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 6.352706472deg' successfully parsed 2026-10-09 09:17:17 INFO phaseshift::::casa Shift phase center 2026-10-09 09:17:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:17:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:17:10.855638 End time: 2026-10-09 09:17:20.262897 2026-10-09 09:17:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:17:20 INFO phaseshift::::casa ########################################## 2026-10-09 09:17:20 INFO tclean::::casa ########################################## 2026-10-09 09:17:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:17:20 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:17:20 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:17:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:17:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:17:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:17:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:17:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:17:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:17:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:17:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:17:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:17:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:17:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:17:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:17:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027495 2026-10-09 09:17:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:17:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:17:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:17:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:17:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:17:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:17:27 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:17:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:17:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:17:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:17:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:17:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:17:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:17:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:17:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:17:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:17:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:17:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:17:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:17:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:17:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:17:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:17:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:17:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:17:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:17:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:17:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:17:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:17:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:17:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:17:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:17:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:17:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:17:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:17:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:17:39 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:17:41 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:17:20.322679 End time: 2026-10-09 09:17:40.552188 2026-10-09 09:17:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:17:41 INFO tclean::::casa ########################################## 2026-10-09 09:17:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:17:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:17:41 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) 2026-10-09 09:17:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:17:41 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:17:41 2026****** 2026-10-09 09:17:41 INFO ImageFitter::fit+ 2026-10-09 09:17:41 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:17:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:17:41 INFO ImageFitter::fit+ --- region: 2026-10-09 09:17:41 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:17:41 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:17:41 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:17:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:17:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:17:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:17:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:17:41 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) 2026-10-09 09:17:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:17:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:17:41 INFO imstat::::casa ########################################## 2026-10-09 09:17:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:17:41 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 ) 2026-10-09 09:17:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:17:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:17:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:17:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:17:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:17:41 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) 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:17:41 INFO imstat:::: Values --- 2026-10-09 09:17:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:17:41 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:17:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:17:41 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-10-09 09:17:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:17:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:17:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:17:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:17:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:17:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:17:41 INFO imstat:::: Statistics --- 2026-10-09 09:17:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:17:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:17:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:17:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:17:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-10-09 09:17:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-10-09 09:17:41 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-10-09 09:17:41 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-10-09 09:17:41 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:17:41 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777703e-05 4.999996e+00 2026-10-09 09:17:41 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:17:40.617664 End time: 2026-10-09 09:17:40.641682 2026-10-09 09:17:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:17:41 INFO imstat::::casa ########################################## 2026-10-09 09:17:41 INFO phaseshift::::casa ########################################## 2026-10-09 09:17:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:17:41 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 05h00m21.5326 0.110875644rad' ) 2026-10-09 09:17:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:17:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:17:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:17:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:17:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:17:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:17:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:17:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:17:41 INFO MSTransformManager::open Select data 2026-10-09 09:17:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:17:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:17:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 0.110875644rad' successfully parsed 2026-10-09 09:17:44 INFO phaseshift::::casa Shift phase center 2026-10-09 09:17:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:17:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:17:40.656709 End time: 2026-10-09 09:17:45.597314 2026-10-09 09:17:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:17:46 INFO phaseshift::::casa ########################################## 2026-10-09 09:17:46 INFO tclean::::casa ########################################## 2026-10-09 09:17:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:17:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:17:46 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:17:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:17:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:17:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:17:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:17:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:17:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:17:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:17:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:17:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:17:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:17:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:17:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:17:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027659 2026-10-09 09:17:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:17:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:17:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:17:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:17:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:17:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:17:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:17:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:17:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:17:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:17:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:17:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:17:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:17:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:17:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:17:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:17:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:17:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:17:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:17:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:17:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:17:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:17:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:17:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:18:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:18:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:18:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:18:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:18:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:18:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:18:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:18:03 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:18:03 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:18:03 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:18:04 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:18:05 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:18:07 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:17:45.653768 End time: 2026-10-09 09:18:06.695527 2026-10-09 09:18:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:18:07 INFO tclean::::casa ########################################## 2026-10-09 09:18:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:18:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:18:07 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:18:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:18:07 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:18:07 2026****** 2026-10-09 09:18:07 INFO ImageFitter::fit+ 2026-10-09 09:18:07 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:18:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:18:07 INFO ImageFitter::fit+ --- region: 2026-10-09 09:18:07 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:18:07 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:18:07 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:18:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:18:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:18:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:18:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:18:07 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:18:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:18:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:18:07 INFO imstat::::casa ########################################## 2026-10-09 09:18:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:18:07 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:18:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:18:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:18:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:18:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:18:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:18:07 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:18:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:18:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:18:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:18:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:18:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:18:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:18:07 INFO imstat:::: Values --- 2026-10-09 09:18:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:18:07 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:18:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:18:07 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-10-09 09:18:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:18:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:18:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:18:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 09:18:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:18:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:18:07 INFO imstat:::: Statistics --- 2026-10-09 09:18:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:18:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:18:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:18:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:18:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-09 09:18:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-10-09 09:18:07 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-10-09 09:18:07 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-10-09 09:18:07 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-10-09 09:18:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:18:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:18:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:18:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:18:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:18:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:18:07 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 2026-10-09 09:18:07 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:18:06.772251 End time: 2026-10-09 09:18:06.799283 2026-10-09 09:18:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:18:07 INFO imstat::::casa ########################################## 2026-10-09 09:18:07 INFO phaseshift::::casa ########################################## 2026-10-09 09:18:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:18:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 +006d21m09.7433' ) 2026-10-09 09:18:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:18:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:18:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:18:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:18:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:18:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:18:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:18:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:18:07 INFO MSTransformManager::open Select data 2026-10-09 09:18:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:18:11 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:18:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 +006d21m09.7433' successfully parsed 2026-10-09 09:18:11 INFO phaseshift::::casa Shift phase center 2026-10-09 09:18:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:18:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:18:06.816159 End time: 2026-10-09 09:18:12.528640 2026-10-09 09:18:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:18:13 INFO phaseshift::::casa ########################################## 2026-10-09 09:18:13 INFO tclean::::casa ########################################## 2026-10-09 09:18:13 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:18:13 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:18:13 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:18:13 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:18:13 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:18:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:18:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:18:13 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:18:13 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:18:13 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:18:13 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:18:13 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:18:13 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:18:13 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:18:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:18:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027617 2026-10-09 09:18:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:18:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:18:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:18:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:18:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:18:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:18:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:18:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:18:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:18:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:18:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:18:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:18:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:18:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:18:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:18:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:18:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:18:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:18:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:18:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:18:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:18:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:18:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:18:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:18:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:18:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:18:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:18:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:18:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:18:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:18:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:18:26 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:18:26 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:18:26 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:18:28 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:18:28 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:18:29 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:18:12.588018 End time: 2026-10-09 09:18:29.452772 2026-10-09 09:18:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:18:29 INFO tclean::::casa ########################################## 2026-10-09 09:18:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:18:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:18:29 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:18:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:18:29 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:18:29 2026****** 2026-10-09 09:18:29 INFO ImageFitter::fit+ 2026-10-09 09:18:29 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:18:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:18:29 INFO ImageFitter::fit+ --- region: 2026-10-09 09:18:29 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:18:29 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:18:29 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:18:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:18:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:18:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:18:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:18:30 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:18:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:18:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:18:30 INFO imstat::::casa ########################################## 2026-10-09 09:18:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:18:30 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:18:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:18:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:18:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:18:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:18:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:18:30 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:18:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:18:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:18:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:18:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:18:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:18:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:18:30 INFO imstat:::: Values --- 2026-10-09 09:18:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:18:30 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:18:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:18:30 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-10-09 09:18:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:18:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:18:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:18:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:18:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:18:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:18:30 INFO imstat:::: Statistics --- 2026-10-09 09:18:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:18:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:18:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:18:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:18:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-10-09 09:18:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-10-09 09:18:30 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-10-09 09:18:30 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-10-09 09:18:30 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-10-09 09:18:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:18:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:18:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:18:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:18:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:18:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:18:30 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 2026-10-09 09:18:30 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:18:29.529316 End time: 2026-10-09 09:18:29.555753 2026-10-09 09:18:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:18:30 INFO imstat::::casa ########################################## 2026-10-09 09:18:30 INFO phaseshift::::casa ########################################## 2026-10-09 09:18:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:18:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 00:25:24.6496' ) 2026-10-09 09:18:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:18:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:18:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:18:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:18:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:18:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:18:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:18:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:18:30 INFO MSTransformManager::open Select data 2026-10-09 09:18:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:18:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 09:18:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 00:25:24.6496' successfully parsed 2026-10-09 09:18:34 INFO phaseshift::::casa Shift phase center 2026-10-09 09:18:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:18:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:18:29.572817 End time: 2026-10-09 09:18:35.873306 2026-10-09 09:18:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:18:36 INFO phaseshift::::casa ########################################## 2026-10-09 09:18:36 INFO tclean::::casa ########################################## 2026-10-09 09:18:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:18:36 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:18:36 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:18:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:18:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:18:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:18:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:18:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:18:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:18:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:18:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:18:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:18:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:18:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:18:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:18:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027685 2026-10-09 09:18:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:18:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:18:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:18:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:18:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:18:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:18:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:18:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:18:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:18:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:18:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:18:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:18:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:18:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:18:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:18:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:18:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:18:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:18:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:18:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:18:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:18:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:18:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:18:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:18:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:18:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:18:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:18:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:18:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:18:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:18:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:18:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:18:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:18:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:18:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:18:57 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:18:59 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:18:35.929495 End time: 2026-10-09 09:18:59.000407 2026-10-09 09:18:59 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:18:59 INFO tclean::::casa ########################################## 2026-10-09 09:18:59 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:18:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:18:59 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) 2026-10-09 09:18:59 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:18:59 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:18:59 2026****** 2026-10-09 09:18:59 INFO ImageFitter::fit+ 2026-10-09 09:18:59 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:18:59 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:18:59 INFO ImageFitter::fit+ --- region: 2026-10-09 09:18:59 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:18:59 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:18:59 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:18:59 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:18:59 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:18:59 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:18:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:18:59 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) 2026-10-09 09:18:59 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:18:59 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:18:59 INFO imstat::::casa ########################################## 2026-10-09 09:18:59 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:18:59 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 ) 2026-10-09 09:18:59 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:18:59 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:18:59 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:18:59 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:18:59 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:18:59 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-09 09:18:59 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:18:59 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:18:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:18:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:18:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 09:18:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 09:18:59 INFO imstat:::: Values --- 2026-10-09 09:18:59 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:18:59 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:18:59 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:18:59 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-10-09 09:18:59 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:18:59 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:18:59 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:18:59 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:18:59 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:18:59 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:18:59 INFO imstat:::: Statistics --- 2026-10-09 09:18:59 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:18:59 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:18:59 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:18:59 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:18:59 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-10-09 09:18:59 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-10-09 09:18:59 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-10-09 09:18:59 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-10-09 09:18:59 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-10-09 09:18:59 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:18:59 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:18:59 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:18:59 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:18:59 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:18:59 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:18:59 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 2026-10-09 09:18:59 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:18:59.072308 End time: 2026-10-09 09:18:59.103787 2026-10-09 09:18:59 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:18:59 INFO imstat::::casa ########################################## 2026-10-09 09:18:59 INFO phaseshift::::casa ########################################## 2026-10-09 09:18:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:18:59 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 6.352706472deg' ) 2026-10-09 09:18:59 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:18:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:18:59 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:18:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:18:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:18:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:18:59 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:18:59 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:18:59 INFO MSTransformManager::open Select data 2026-10-09 09:18:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:19:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:19:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 6.352706472deg' successfully parsed 2026-10-09 09:19:04 INFO phaseshift::::casa Shift phase center 2026-10-09 09:19:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:19:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:18:59.119049 End time: 2026-10-09 09:19:05.382439 2026-10-09 09:19:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:19:05 INFO phaseshift::::casa ########################################## 2026-10-09 09:19:05 INFO tclean::::casa ########################################## 2026-10-09 09:19:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:19:05 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:19:05 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:19:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:19:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:19:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:19:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:19:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:19:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:19:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:19:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:19:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:19:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:19:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:19:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:19:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02563 2026-10-09 09:19:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:19:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:19:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:19:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:19:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:19:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:19:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:19:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:19:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:19:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:19:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:19:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:19:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:19:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:19:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:19:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:19:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:19:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:19:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:19:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:19:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:19:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:19:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:19:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:19:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:19:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:19:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:19:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:19:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:19:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:19:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:19:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:19:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:19:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:19:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:19:18 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:19:19 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:19:05.432275 End time: 2026-10-09 09:19:19.328515 2026-10-09 09:19:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:19:19 INFO tclean::::casa ########################################## 2026-10-09 09:19:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:19:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:19:19 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:19:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:19:19 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:19:19 2026****** 2026-10-09 09:19:19 INFO ImageFitter::fit+ 2026-10-09 09:19:19 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:19:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:19:19 INFO ImageFitter::fit+ --- region: 2026-10-09 09:19:19 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:19:19 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:19:19 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:19:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:19:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:19:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:19:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:19:19 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:19:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:19:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:19:19 INFO imstat::::casa ########################################## 2026-10-09 09:19:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:19:19 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:19:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:19:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:19:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:19:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:19:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:19:19 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:19:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:19:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:19:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:19:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:19:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:19:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:19:19 INFO imstat:::: Values --- 2026-10-09 09:19:19 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:19:19 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:19:19 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:19:19 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-10-09 09:19:19 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:19:19 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:19:19 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:19:19 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:19:19 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:19:19 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:19:19 INFO imstat:::: Statistics --- 2026-10-09 09:19:19 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:19:19 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:19:19 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:19:19 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:19:19 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-10-09 09:19:19 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-10-09 09:19:19 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-10-09 09:19:19 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-10-09 09:19:19 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-10-09 09:19:19 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:19:19 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:19:19 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:19:19 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:19:19 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:19:19 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:19:19 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 2026-10-09 09:19:19 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:19:19.406393 End time: 2026-10-09 09:19:19.433648 2026-10-09 09:19:19 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:19:19 INFO imstat::::casa ########################################## 2026-10-09 09:19:19 INFO phaseshift::::casa ########################################## 2026-10-09 09:19:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:19:19 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 0.110875644rad' ) 2026-10-09 09:19:19 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:19:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:19:19 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:19:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:19:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:19:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:19:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:19:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:19:19 INFO MSTransformManager::open Select data 2026-10-09 09:19:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:19:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:19:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 0.110875644rad' successfully parsed 2026-10-09 09:19:24 INFO phaseshift::::casa Shift phase center 2026-10-09 09:19:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:19:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:19:19.450476 End time: 2026-10-09 09:19:25.094134 2026-10-09 09:19:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:19:25 INFO phaseshift::::casa ########################################## 2026-10-09 09:19:25 INFO tclean::::casa ########################################## 2026-10-09 09:19:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:19:25 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:19:25 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:19:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:19:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:19:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:19:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:19:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:19:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:19:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:19:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:19:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:19:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:19:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:19:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:19:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025494 2026-10-09 09:19:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:19:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:19:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:19:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:19:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:19:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:19:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:19:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:19:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:19:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:19:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:19:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:19:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:19:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:19:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:19:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:19:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:19:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:19:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:19:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:19:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:19:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:19:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:19:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:19:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:19:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:19:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:19:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:19:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:19:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:19:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:19:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:19:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:19:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:19:41 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:19:41 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:19:43 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:19:25.155325 End time: 2026-10-09 09:19:43.126743 2026-10-09 09:19:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:19:43 INFO tclean::::casa ########################################## 2026-10-09 09:19:43 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:19:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:19:43 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) 2026-10-09 09:19:43 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:19:43 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:19:43 2026****** 2026-10-09 09:19:43 INFO ImageFitter::fit+ 2026-10-09 09:19:43 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:19:43 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:19:43 INFO ImageFitter::fit+ --- region: 2026-10-09 09:19:43 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:19:43 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:19:43 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:19:43 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:19:43 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:19:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:19:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:19:43 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) 2026-10-09 09:19:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:19:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:19:43 INFO imstat::::casa ########################################## 2026-10-09 09:19:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:19:43 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 ) 2026-10-09 09:19:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:19:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:19:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:19:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:19:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:19:43 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) 2026-10-09 09:19:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:19:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:19:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:19:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:19:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:19:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:19:43 INFO imstat:::: Values --- 2026-10-09 09:19:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:19:43 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:19:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:19:43 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-10-09 09:19:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:19:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:19:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:19:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 09:19:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:19:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:19:43 INFO imstat:::: Statistics --- 2026-10-09 09:19:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:19:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:19:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:19:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:19:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-09 09:19:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-10-09 09:19:43 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-10-09 09:19:43 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-10-09 09:19:43 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-10-09 09:19:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:19:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:19:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:19:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:19:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:19:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:19:43 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 2026-10-09 09:19:43 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:19:43.206301 End time: 2026-10-09 09:19:43.234343 2026-10-09 09:19:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:19:43 INFO imstat::::casa ########################################## 2026-10-09 09:19:43 INFO phaseshift::::casa ########################################## 2026-10-09 09:19:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:19:43 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 75.089719167deg +006d21m09.7433' ) 2026-10-09 09:19:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:19:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:19:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:19:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:19:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:19:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:19:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:19:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:19:43 INFO MSTransformManager::open Select data 2026-10-09 09:19:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:19:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:19:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg +006d21m09.7433' successfully parsed 2026-10-09 09:19:48 INFO phaseshift::::casa Shift phase center 2026-10-09 09:19:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:19:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:19:43.251707 End time: 2026-10-09 09:19:48.812257 2026-10-09 09:19:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:19:49 INFO phaseshift::::casa ########################################## 2026-10-09 09:19:49 INFO tclean::::casa ########################################## 2026-10-09 09:19:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:19:49 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:19:49 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:19:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:19:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:19:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:19:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:19:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:19:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:19:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:19:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:19:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:19:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:19:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:19:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:19:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02566 2026-10-09 09:19:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:19:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:19:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:19:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:19:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:19:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:19:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:19:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:19:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:19:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:19:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:19:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:19:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:19:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:19:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:19:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:19:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:19:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:19:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:19:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:19:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:20:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:20:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:20:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:20:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:20:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:20:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:20:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:20:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:20:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:20:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:20:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:20:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:20:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:20:07 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:20:07 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:20:09 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:19:48.868828 End time: 2026-10-09 09:20:08.962811 2026-10-09 09:20:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:20:09 INFO tclean::::casa ########################################## 2026-10-09 09:20:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:20:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:20:09 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) 2026-10-09 09:20:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:20:09 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:20:09 2026****** 2026-10-09 09:20:09 INFO ImageFitter::fit+ 2026-10-09 09:20:09 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:20:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:20:09 INFO ImageFitter::fit+ --- region: 2026-10-09 09:20:09 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:20:09 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:20:09 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:20:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:20:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:20:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:20:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:20:09 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) 2026-10-09 09:20:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116867 Jy 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126483 Jy 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:20:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:20:09 INFO imstat::::casa ########################################## 2026-10-09 09:20:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:20:09 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 ) 2026-10-09 09:20:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:20:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:20:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:20:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:20:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:20:09 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) 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:20:09 INFO imstat:::: Values --- 2026-10-09 09:20:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:20:09 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:20:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:20:09 INFO imstat:::: -- minimum value [min]: -7.77768e-05 Jy/beam 2026-10-09 09:20:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:20:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:20:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:20:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:20:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:20:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:20:09 INFO imstat:::: Statistics --- 2026-10-09 09:20:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:20:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:20:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:20:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:20:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-10-09 09:20:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73609e-05 Jy/beam 2026-10-09 09:20:09 INFO imstat:::: -- IQR [quartile]: 3.56013e-05 Jy/beam 2026-10-09 09:20:09 INFO imstat:::: -- First quartile [q1]: -3.4507e-05 Jy/beam 2026-10-09 09:20:09 INFO imstat:::: -- Third quartile [q3]: 1.09435e-06 Jy/beam 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:20:09 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777678e-05 4.999996e+00 2026-10-09 09:20:09 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:20:09.044314 End time: 2026-10-09 09:20:09.072664 2026-10-09 09:20:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:20:09 INFO imstat::::casa ########################################## 2026-10-09 09:20:09 INFO phaseshift::::casa ########################################## 2026-10-09 09:20:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:20:09 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 00:25:24.6496' ) 2026-10-09 09:20:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:20:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:20:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:20:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:20:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:20:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:20:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:20:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:20:09 INFO MSTransformManager::open Select data 2026-10-09 09:20:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:20:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 09:20:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 00:25:24.6496' successfully parsed 2026-10-09 09:20:13 INFO phaseshift::::casa Shift phase center 2026-10-09 09:20:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:20:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:20:09.090298 End time: 2026-10-09 09:20:14.673085 2026-10-09 09:20:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:20:15 INFO phaseshift::::casa ########################################## 2026-10-09 09:20:15 INFO tclean::::casa ########################################## 2026-10-09 09:20:15 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:20:15 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:20:15 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:20:15 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:20:15 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:20:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:20:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:20:15 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:20:15 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:20:15 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:20:15 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.13 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:20:15 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:20:15 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:20:15 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:20:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:20:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027612 2026-10-09 09:20:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:20:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:20:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:20:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:20:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:20:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:20:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:20:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:20:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:20:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:20:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:20:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:20:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:20:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:20:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:20:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:20:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:20:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:20:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:20:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:20:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:20:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:20:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:20:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:20:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:20:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:20:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:20:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:20:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:20:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:20:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:20:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:20:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:20:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:20:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:20:29 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:20:30 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:20:14.733465 End time: 2026-10-09 09:20:29.895150 2026-10-09 09:20:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:20:30 INFO tclean::::casa ########################################## 2026-10-09 09:20:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:20:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:20:30 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:20:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:20:30 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:20:30 2026****** 2026-10-09 09:20:30 INFO ImageFitter::fit+ 2026-10-09 09:20:30 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:20:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:20:30 INFO ImageFitter::fit+ --- region: 2026-10-09 09:20:30 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:20:30 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:20:30 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:20:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:20:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:20:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:20:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:20:30 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:20:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116903 Jy 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126517 Jy 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:20:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:20:30 INFO imstat::::casa ########################################## 2026-10-09 09:20:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:20:30 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:20:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:20:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:20:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:20:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:20:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:20:30 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-09 09:20:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:20:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:20:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:20:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:20:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 09:20:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 09:20:30 INFO imstat:::: Values --- 2026-10-09 09:20:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:20:30 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:20:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:20:30 INFO imstat:::: -- minimum value [min]: -7.78731e-05 Jy/beam 2026-10-09 09:20:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:20:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:20:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:20:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:20:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:20:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:20:30 INFO imstat:::: Statistics --- 2026-10-09 09:20:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:20:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:20:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:20:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:20:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86503e-05 Jy/beam 2026-10-09 09:20:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73798e-05 Jy/beam 2026-10-09 09:20:30 INFO imstat:::: -- IQR [quartile]: 3.56966e-05 Jy/beam 2026-10-09 09:20:30 INFO imstat:::: -- First quartile [q1]: -3.45352e-05 Jy/beam 2026-10-09 09:20:30 INFO imstat:::: -- Third quartile [q3]: 1.16146e-06 Jy/beam 2026-10-09 09:20:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:20:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:20:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:20:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:20:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:20:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:20:30 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 2026-10-09 09:20:30 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:20:29.965851 End time: 2026-10-09 09:20:30.005777 2026-10-09 09:20:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:20:30 INFO imstat::::casa ########################################## 2026-10-09 09:20:30 INFO phaseshift::::casa ########################################## 2026-10-09 09:20:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:20:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 6.352706472deg' ) 2026-10-09 09:20:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:20:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:20:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:20:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:20:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:20:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:20:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:20:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:20:30 INFO MSTransformManager::open Select data 2026-10-09 09:20:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:20:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:20:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 6.352706472deg' successfully parsed 2026-10-09 09:20:34 INFO phaseshift::::casa Shift phase center 2026-10-09 09:20:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:20:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:20:30.031104 End time: 2026-10-09 09:20:34.929582 2026-10-09 09:20:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:20:35 INFO phaseshift::::casa ########################################## 2026-10-09 09:20:35 INFO tclean::::casa ########################################## 2026-10-09 09:20:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:20:35 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:20:35 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:20:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:20:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:20:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:20:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:20:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:20:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:20:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:20:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:20:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:20:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:20:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:20:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:20:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.018045 2026-10-09 09:20:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:20:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:20:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:20:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:20:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:20:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:20:39 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:20:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:20:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:20:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:20:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:20:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:20:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:20:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:20:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:20:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:20:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:20:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:20:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:20:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:20:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:20:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:20:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:20:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:20:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:20:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:20:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:20:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:20:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:20:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:20:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:20:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:20:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:20:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:20:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:20:47 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:20:48 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:20:34.962511 End time: 2026-10-09 09:20:47.955352 2026-10-09 09:20:48 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:20:48 INFO tclean::::casa ########################################## 2026-10-09 09:20:48 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:20:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:20:48 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) 2026-10-09 09:20:48 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:20:48 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:20:48 2026****** 2026-10-09 09:20:48 INFO ImageFitter::fit+ 2026-10-09 09:20:48 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:20:48 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:20:48 INFO ImageFitter::fit+ --- region: 2026-10-09 09:20:48 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:20:48 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:20:48 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:20:48 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:20:48 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:20:48 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:20:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:20:48 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) 2026-10-09 09:20:48 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011687 Jy 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:20:48 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:20:48 INFO imstat::::casa ########################################## 2026-10-09 09:20:48 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:20:48 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 ) 2026-10-09 09:20:48 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:20:48 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:20:48 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:20:48 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:20:48 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:20:48 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) 2026-10-09 09:20:48 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:20:48 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:20:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:20:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:20:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:20:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:20:48 INFO imstat:::: Values --- 2026-10-09 09:20:48 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:20:48 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:20:48 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:20:48 INFO imstat:::: -- minimum value [min]: -7.77771e-05 Jy/beam 2026-10-09 09:20:48 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:20:48 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:20:48 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:20:48 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:20:48 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:20:48 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:20:48 INFO imstat:::: Statistics --- 2026-10-09 09:20:48 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:20:48 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:20:48 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:20:48 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:20:48 INFO imstat:::: -- Median of the pixel values [median]: -1.86715e-05 Jy/beam 2026-10-09 09:20:48 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73619e-05 Jy/beam 2026-10-09 09:20:48 INFO imstat:::: -- IQR [quartile]: 3.56021e-05 Jy/beam 2026-10-09 09:20:48 INFO imstat:::: -- First quartile [q1]: -3.45061e-05 Jy/beam 2026-10-09 09:20:48 INFO imstat:::: -- Third quartile [q3]: 1.09605e-06 Jy/beam 2026-10-09 09:20:48 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:20:48 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:20:48 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:20:48 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:20:48 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:20:48 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:20:48 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 2026-10-09 09:20:48 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:20:48.030429 End time: 2026-10-09 09:20:48.057196 2026-10-09 09:20:48 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:20:48 INFO imstat::::casa ########################################## 2026-10-09 09:20:48 INFO phaseshift::::casa ########################################## 2026-10-09 09:20:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:20:48 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 0.110875644rad' ) 2026-10-09 09:20:48 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:20:48 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:20:48 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:20:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:20:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:20:48 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:20:48 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:20:48 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:20:48 INFO MSTransformManager::open Select data 2026-10-09 09:20:48 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:20:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:20:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 0.110875644rad' successfully parsed 2026-10-09 09:20:52 INFO phaseshift::::casa Shift phase center 2026-10-09 09:20:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:20:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:20:48.073626 End time: 2026-10-09 09:20:52.978933 2026-10-09 09:20:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:20:53 INFO phaseshift::::casa ########################################## 2026-10-09 09:20:53 INFO tclean::::casa ########################################## 2026-10-09 09:20:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:20:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:20:53 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:20:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:20:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:20:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:20:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:20:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:20:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:20:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:20:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.13 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:20:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:20:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:20:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:20:54 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:20:54 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026155 2026-10-09 09:20:54 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:20:54 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:20:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:20:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:20:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:20:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:20:57 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:20:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:20:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:20:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:20:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:20:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:21:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:21:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:21:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:21:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:21:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:21:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:21:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:21:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:21:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:21:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:21:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:21:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:21:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:21:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:21:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:21:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:21:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:21:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:21:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:21:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:21:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:21:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:21:11 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:21:11 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:21:14 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:20:53.031433 End time: 2026-10-09 09:21:14.049329 2026-10-09 09:21:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:21:14 INFO tclean::::casa ########################################## 2026-10-09 09:21:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:21:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:21:14 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) 2026-10-09 09:21:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:21:14 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:21:14 2026****** 2026-10-09 09:21:14 INFO ImageFitter::fit+ 2026-10-09 09:21:14 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:21:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:21:14 INFO ImageFitter::fit+ --- region: 2026-10-09 09:21:14 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:21:14 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:21:14 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:21:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:21:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:21:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:21:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:21:14 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) 2026-10-09 09:21:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126482 Jy 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:21:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:21:14 INFO imstat::::casa ########################################## 2026-10-09 09:21:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:21:14 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 ) 2026-10-09 09:21:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:21:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:21:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:21:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:21:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:21:14 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) 2026-10-09 09:21:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:21:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:21:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:21:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:21:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:21:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:21:14 INFO imstat:::: Values --- 2026-10-09 09:21:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:21:14 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:21:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:21:14 INFO imstat:::: -- minimum value [min]: -7.77855e-05 Jy/beam 2026-10-09 09:21:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:21:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:21:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:21:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 09:21:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:21:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:21:14 INFO imstat:::: Statistics --- 2026-10-09 09:21:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:21:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:21:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:21:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:21:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86732e-05 Jy/beam 2026-10-09 09:21:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73562e-05 Jy/beam 2026-10-09 09:21:14 INFO imstat:::: -- IQR [quartile]: 3.56008e-05 Jy/beam 2026-10-09 09:21:14 INFO imstat:::: -- First quartile [q1]: -3.45107e-05 Jy/beam 2026-10-09 09:21:14 INFO imstat:::: -- Third quartile [q3]: 1.09015e-06 Jy/beam 2026-10-09 09:21:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:21:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:21:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:21:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:21:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:21:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:21:14 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 2026-10-09 09:21:14 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:21:14.126184 End time: 2026-10-09 09:21:14.153336 2026-10-09 09:21:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:21:14 INFO imstat::::casa ########################################## 2026-10-09 09:21:14 INFO phaseshift::::casa ########################################## 2026-10-09 09:21:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:21:14 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 1.310562834rad +006d21m09.7433' ) 2026-10-09 09:21:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:21:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:21:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:21:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:21:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:21:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:21:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:21:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:21:14 INFO MSTransformManager::open Select data 2026-10-09 09:21:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:21:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:21:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad +006d21m09.7433' successfully parsed 2026-10-09 09:21:19 INFO phaseshift::::casa Shift phase center 2026-10-09 09:21:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:21:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:21:14.170049 End time: 2026-10-09 09:21:20.131225 2026-10-09 09:21:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:21:20 INFO phaseshift::::casa ########################################## 2026-10-09 09:21:20 INFO tclean::::casa ########################################## 2026-10-09 09:21:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:21:20 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:21:20 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:21:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:21:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:21:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:21:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:21:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:21:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:21:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:21:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:21:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:21:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:21:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:21:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:21:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023828 2026-10-09 09:21:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:21:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:21:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:21:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:21:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:21:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:21:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:21:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:21:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:21:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:21:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:21:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:21:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:21:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:21:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:21:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:21:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:21:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:21:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:21:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:21:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:21:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:21:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:21:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:21:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:21:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:21:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:21:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:21:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:21:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:21:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:21:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:21:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:21:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:21:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:21:37 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:21:42 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:21:20.182708 End time: 2026-10-09 09:21:41.564280 2026-10-09 09:21:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:21:42 INFO tclean::::casa ########################################## 2026-10-09 09:21:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:21:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:21:42 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) 2026-10-09 09:21:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:21:42 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:21:42 2026****** 2026-10-09 09:21:42 INFO ImageFitter::fit+ 2026-10-09 09:21:42 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:21:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:21:42 INFO ImageFitter::fit+ --- region: 2026-10-09 09:21:42 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:21:42 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:21:42 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:21:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:21:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:21:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:21:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:21:42 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) 2026-10-09 09:21:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:21:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:21:42 INFO imstat::::casa ########################################## 2026-10-09 09:21:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:21:42 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 ) 2026-10-09 09:21:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:21:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:21:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:21:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:21:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:21:42 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) 2026-10-09 09:21:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:21:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:21:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:21:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:21:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:21:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:21:42 INFO imstat:::: Values --- 2026-10-09 09:21:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:21:42 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:21:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:21:42 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-09 09:21:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:21:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:21:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:21:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:21:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:21:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:21:42 INFO imstat:::: Statistics --- 2026-10-09 09:21:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:21:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:21:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:21:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:21:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86669e-05 Jy/beam 2026-10-09 09:21:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73635e-05 Jy/beam 2026-10-09 09:21:42 INFO imstat:::: -- IQR [quartile]: 3.56081e-05 Jy/beam 2026-10-09 09:21:42 INFO imstat:::: -- First quartile [q1]: -3.45085e-05 Jy/beam 2026-10-09 09:21:42 INFO imstat:::: -- Third quartile [q3]: 1.09959e-06 Jy/beam 2026-10-09 09:21:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:21:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:21:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:21:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:21:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:21:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:21:42 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 2026-10-09 09:21:42 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:21:41.641877 End time: 2026-10-09 09:21:41.683129 2026-10-09 09:21:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:21:42 INFO imstat::::casa ########################################## 2026-10-09 09:21:42 INFO phaseshift::::casa ########################################## 2026-10-09 09:21:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:21:42 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 00:25:24.6496' ) 2026-10-09 09:21:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:21:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:21:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:21:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:21:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:21:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:21:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:21:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:21:42 INFO MSTransformManager::open Select data 2026-10-09 09:21:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:21:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 09:21:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 00:25:24.6496' successfully parsed 2026-10-09 09:21:47 INFO phaseshift::::casa Shift phase center 2026-10-09 09:21:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:21:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:21:41.709006 End time: 2026-10-09 09:21:48.428387 2026-10-09 09:21:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:21:48 INFO phaseshift::::casa ########################################## 2026-10-09 09:21:48 INFO tclean::::casa ########################################## 2026-10-09 09:21:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:21:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:21:48 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:21:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:21:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:21:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:21:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:21:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:21:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:21:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:21:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:21:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:21:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:21:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:21:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:21:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025714 2026-10-09 09:21:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:21:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:21:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:21:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:21:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:21:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:21:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:21:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:21:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:21:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:21:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:21:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:21:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:21:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:21:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:21:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:21:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:21:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:21:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:21:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:21:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:21:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:21:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:21:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:22:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:22:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:22:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:22:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:22:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:22:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:22:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:22:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:22:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:22:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:22:03 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:22:03 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:22:06 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:21:48.484557 End time: 2026-10-09 09:22:05.743618 2026-10-09 09:22:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:22:06 INFO tclean::::casa ########################################## 2026-10-09 09:22:06 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:22:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:22:06 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) 2026-10-09 09:22:06 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:22:06 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:22:06 2026****** 2026-10-09 09:22:06 INFO ImageFitter::fit+ 2026-10-09 09:22:06 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:22:06 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:22:06 INFO ImageFitter::fit+ --- region: 2026-10-09 09:22:06 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:22:06 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:22:06 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:22:06 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:22:06 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:22:06 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:22:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:22:06 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) 2026-10-09 09:22:06 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116905 Jy 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000041 +/- 0.000777 arcsec 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- ra: 127.999941 +/- 0.000127 pixels 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- dec: 127.999954 +/- 0.000097 pixels 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:22:06 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:22:06 INFO imstat::::casa ########################################## 2026-10-09 09:22:06 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:22:06 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 ) 2026-10-09 09:22:06 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:22:06 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:22:06 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:22:06 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:22:06 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:22:06 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) 2026-10-09 09:22:06 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:22:06 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:22:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:22:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:22:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 09:22:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 09:22:06 INFO imstat:::: Values --- 2026-10-09 09:22:06 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:22:06 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:22:06 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:22:06 INFO imstat:::: -- minimum value [min]: -7.78774e-05 Jy/beam 2026-10-09 09:22:06 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:22:06 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:22:06 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:22:06 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:22:06 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:22:06 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:22:06 INFO imstat:::: Statistics --- 2026-10-09 09:22:06 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:22:06 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:22:06 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:22:06 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:22:06 INFO imstat:::: -- Median of the pixel values [median]: -1.86532e-05 Jy/beam 2026-10-09 09:22:06 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73779e-05 Jy/beam 2026-10-09 09:22:06 INFO imstat:::: -- IQR [quartile]: 3.5701e-05 Jy/beam 2026-10-09 09:22:06 INFO imstat:::: -- First quartile [q1]: -3.45356e-05 Jy/beam 2026-10-09 09:22:06 INFO imstat:::: -- Third quartile [q3]: 1.16544e-06 Jy/beam 2026-10-09 09:22:06 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:22:06 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:22:06 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:22:06 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:22:06 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:22:06 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:22:06 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 2026-10-09 09:22:06 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:22:05.813643 End time: 2026-10-09 09:22:05.838970 2026-10-09 09:22:06 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:22:06 INFO imstat::::casa ########################################## 2026-10-09 09:22:06 INFO phaseshift::::casa ########################################## 2026-10-09 09:22:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:22:06 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 6.352706472deg' ) 2026-10-09 09:22:06 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:22:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:22:06 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:22:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:22:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:22:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:22:06 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:22:06 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:22:06 INFO MSTransformManager::open Select data 2026-10-09 09:22:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:22:11 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:22:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 6.352706472deg' successfully parsed 2026-10-09 09:22:11 INFO phaseshift::::casa Shift phase center 2026-10-09 09:22:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:22:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:22:05.855103 End time: 2026-10-09 09:22:13.568122 2026-10-09 09:22:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:22:14 INFO phaseshift::::casa ########################################## 2026-10-09 09:22:14 INFO tclean::::casa ########################################## 2026-10-09 09:22:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:22:14 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:22:14 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:22:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:22:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:22:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:22:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:22:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:22:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:22:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:22:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:22:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:22:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:22:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:22:16 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:22:16 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027728 2026-10-09 09:22:16 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:22:16 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:22:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:22:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:22:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:22:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:22:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:22:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:22:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:22:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:22:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:22:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:22:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:22:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:22:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:22:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:22:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:22:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:22:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:22:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:22:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:22:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:22:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:22:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:22:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:22:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:22:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:22:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:22:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:22:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:22:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:22:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:22:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:22:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:22:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:22:29 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:22:31 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:22:13.627506 End time: 2026-10-09 09:22:30.626719 2026-10-09 09:22:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:22:31 INFO tclean::::casa ########################################## 2026-10-09 09:22:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:22:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:22:31 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) 2026-10-09 09:22:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:22:31 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:22:31 2026****** 2026-10-09 09:22:31 INFO ImageFitter::fit+ 2026-10-09 09:22:31 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:22:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:22:31 INFO ImageFitter::fit+ --- region: 2026-10-09 09:22:31 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:22:31 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:22:31 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:22:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:22:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:22:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:22:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:22:31 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) 2026-10-09 09:22:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:22:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:22:31 INFO imstat::::casa ########################################## 2026-10-09 09:22:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:22:31 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 ) 2026-10-09 09:22:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:22:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:22:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:22:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:22:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:22:31 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) 2026-10-09 09:22:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:22:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:22:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:22:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:22:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:22:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:22:31 INFO imstat:::: Values --- 2026-10-09 09:22:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:22:31 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:22:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:22:31 INFO imstat:::: -- minimum value [min]: -7.77798e-05 Jy/beam 2026-10-09 09:22:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:22:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:22:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:22:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:22:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:22:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:22:31 INFO imstat:::: Statistics --- 2026-10-09 09:22:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:22:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:22:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:22:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:22:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86675e-05 Jy/beam 2026-10-09 09:22:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73645e-05 Jy/beam 2026-10-09 09:22:31 INFO imstat:::: -- IQR [quartile]: 3.56077e-05 Jy/beam 2026-10-09 09:22:31 INFO imstat:::: -- First quartile [q1]: -3.45073e-05 Jy/beam 2026-10-09 09:22:31 INFO imstat:::: -- Third quartile [q3]: 1.1004e-06 Jy/beam 2026-10-09 09:22:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:22:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:22:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:22:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:22:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:22:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:22:31 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 2026-10-09 09:22:31 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:22:30.691926 End time: 2026-10-09 09:22:30.726749 2026-10-09 09:22:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:22:31 INFO imstat::::casa ########################################## 2026-10-09 09:22:31 INFO phaseshift::::casa ########################################## 2026-10-09 09:22:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:22:31 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 1.310562834rad 0.110875644rad' ) 2026-10-09 09:22:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:22:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:22:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:22:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:22:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:22:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:22:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:22:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:22:31 INFO MSTransformManager::open Select data 2026-10-09 09:22:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:22:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:22:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 0.110875644rad' successfully parsed 2026-10-09 09:22:36 INFO phaseshift::::casa Shift phase center 2026-10-09 09:22:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:22:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:22:30.741215 End time: 2026-10-09 09:22:37.327551 2026-10-09 09:22:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:22:37 INFO phaseshift::::casa ########################################## 2026-10-09 09:22:37 INFO tclean::::casa ########################################## 2026-10-09 09:22:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:22:37 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:22:37 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:22:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:22:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:22:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:22:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:22:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:22:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:22:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:22:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:22:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:22:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:22:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:22:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:22:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026097 2026-10-09 09:22:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:22:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:22:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:22:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:22:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:22:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:22:43 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:22:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:22:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:22:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:22:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:22:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:22:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:22:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:22:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:22:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:22:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:22:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:22:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:22:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:22:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:22:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:22:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:22:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:22:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:22:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:22:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:22:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:22:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:22:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:22:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:22:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:22:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:22:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:22:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:22:58 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:23:00 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:22:37.386783 End time: 2026-10-09 09:23:00.127441 2026-10-09 09:23:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:23:00 INFO tclean::::casa ########################################## 2026-10-09 09:23:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:23:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:23:00 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) 2026-10-09 09:23:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:23:00 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:23:00 2026****** 2026-10-09 09:23:00 INFO ImageFitter::fit+ 2026-10-09 09:23:00 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:23:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:23:00 INFO ImageFitter::fit+ --- region: 2026-10-09 09:23:00 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:23:00 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:23:00 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:23:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:23:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:23:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:23:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:23:00 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) 2026-10-09 09:23:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000002 +/- 0.000777 arcsec 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- ra: 128.000014 +/- 0.000127 pixels 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- dec: 127.999998 +/- 0.000097 pixels 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:23:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:23:00 INFO imstat::::casa ########################################## 2026-10-09 09:23:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:23:00 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 ) 2026-10-09 09:23:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:23:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:23:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:23:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:23:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:23:00 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) 2026-10-09 09:23:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:23:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:23:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:23:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:23:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:23:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:23:00 INFO imstat:::: Values --- 2026-10-09 09:23:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:23:00 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:23:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:23:00 INFO imstat:::: -- minimum value [min]: -7.77816e-05 Jy/beam 2026-10-09 09:23:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:23:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:23:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:23:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 09:23:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:23:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:23:00 INFO imstat:::: Statistics --- 2026-10-09 09:23:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:23:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:23:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:23:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:23:00 INFO imstat:::: -- Median of the pixel values [median]: -1.8676e-05 Jy/beam 2026-10-09 09:23:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73584e-05 Jy/beam 2026-10-09 09:23:00 INFO imstat:::: -- IQR [quartile]: 3.56038e-05 Jy/beam 2026-10-09 09:23:00 INFO imstat:::: -- First quartile [q1]: -3.45104e-05 Jy/beam 2026-10-09 09:23:00 INFO imstat:::: -- Third quartile [q3]: 1.09331e-06 Jy/beam 2026-10-09 09:23:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:23:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:23:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:23:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:23:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:23:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:23:00 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 2026-10-09 09:23:00 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:23:00.207591 End time: 2026-10-09 09:23:00.241451 2026-10-09 09:23:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:23:00 INFO imstat::::casa ########################################## 2026-10-09 09:23:00 INFO phaseshift::::casa ########################################## 2026-10-09 09:23:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:23:00 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 19h52m05.65239 39d58m05.8512' ) 2026-10-09 09:23:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:23:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:23:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:23:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:23:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:23:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:23:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:23:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:23:00 INFO MSTransformManager::open Select data 2026-10-09 09:23:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:23:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:23:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39d58m05.8512' successfully parsed 2026-10-09 09:23:05 INFO phaseshift::::casa Shift phase center 2026-10-09 09:23:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:23:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:23:00.262175 End time: 2026-10-09 09:23:07.073550 2026-10-09 09:23:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:23:07 INFO phaseshift::::casa ########################################## 2026-10-09 09:23:07 INFO tclean::::casa ########################################## 2026-10-09 09:23:07 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:23:07 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:23:07 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:23:07 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:23:07 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:23:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:23:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:23:07 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:23:07 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:23:07 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:23:07 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:23:07 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:23:07 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:23:07 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:23:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:23:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02588 2026-10-09 09:23:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:23:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:23:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:23:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:23:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:23:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:23:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:23:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:23:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:23:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:23:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:23:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:23:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:23:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:23:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:23:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:23:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:23:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:23:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:23:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:23:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:23:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:23:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:23:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:23:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:23:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:23:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:23:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:23:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:23:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:23:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:23:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:23:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:23:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:23:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:23:29 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:23:31 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:23:07.130100 End time: 2026-10-09 09:23:31.232645 2026-10-09 09:23:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:23:31 INFO tclean::::casa ########################################## 2026-10-09 09:23:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:23:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:23:31 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) 2026-10-09 09:23:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:23:31 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:23:31 2026****** 2026-10-09 09:23:31 INFO ImageFitter::fit+ 2026-10-09 09:23:31 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:23:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:23:31 INFO ImageFitter::fit+ --- region: 2026-10-09 09:23:31 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:23:31 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:23:31 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:23:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:23:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:23:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:23:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:23:31 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) 2026-10-09 09:23:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:23:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:23:31 INFO imstat::::casa ########################################## 2026-10-09 09:23:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:23:31 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 ) 2026-10-09 09:23:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:23:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:23:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:23:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:23:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:23:31 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) 2026-10-09 09:23:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:23:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:23:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:23:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:23:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:23:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:23:31 INFO imstat:::: Values --- 2026-10-09 09:23:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:23:31 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:23:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:23:31 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-09 09:23:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:23:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:23:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:23:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:23:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:23:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:23:31 INFO imstat:::: Statistics --- 2026-10-09 09:23:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:23:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:23:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:23:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:23:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-09 09:23:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-09 09:23:31 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-09 09:23:31 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-09 09:23:31 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-09 09:23:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:23:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:23:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:23:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:23:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:23:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:23:31 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 2026-10-09 09:23:31 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:23:31.306028 End time: 2026-10-09 09:23:31.332808 2026-10-09 09:23:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:23:31 INFO imstat::::casa ########################################## 2026-10-09 09:23:31 INFO phaseshift::::casa ########################################## 2026-10-09 09:23:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:23:31 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 02:39:52.3901' ) 2026-10-09 09:23:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:23:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:23:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:23:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:23:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:23:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:23:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:23:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:23:31 INFO MSTransformManager::open Select data 2026-10-09 09:23:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:23:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 09:23:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 02:39:52.3901' successfully parsed 2026-10-09 09:23:35 INFO phaseshift::::casa Shift phase center 2026-10-09 09:23:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:23:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:23:31.348933 End time: 2026-10-09 09:23:36.562562 2026-10-09 09:23:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:23:37 INFO phaseshift::::casa ########################################## 2026-10-09 09:23:37 INFO tclean::::casa ########################################## 2026-10-09 09:23:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:23:37 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:23:37 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:23:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:23:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:23:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:23:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:23:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:23:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:23:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:23:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:23:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:23:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:23:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:23:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:23:39 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027936 2026-10-09 09:23:39 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:23:39 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:23:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:23:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:23:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:23:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:23:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:23:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:23:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:23:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:23:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:23:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:23:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:23:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:23:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:23:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:23:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:23:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:23:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:23:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:23:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:23:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:23:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:23:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:23:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:23:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:23:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:23:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:23:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:23:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:23:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:23:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:23:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:23:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:23:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:23:51 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:23:55 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:23:36.618071 End time: 2026-10-09 09:23:55.263546 2026-10-09 09:23:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:23:55 INFO tclean::::casa ########################################## 2026-10-09 09:23:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:23:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:23:55 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) 2026-10-09 09:23:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:23:55 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:23:55 2026****** 2026-10-09 09:23:55 INFO ImageFitter::fit+ 2026-10-09 09:23:55 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:23:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:23:55 INFO ImageFitter::fit+ --- region: 2026-10-09 09:23:55 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:23:55 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:23:55 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:23:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:23:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:23:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:23:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:23:55 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) 2026-10-09 09:23:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:23:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:23:55 INFO imstat::::casa ########################################## 2026-10-09 09:23:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:23:55 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 ) 2026-10-09 09:23:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:23:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:23:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:23:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:23:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:23:55 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) 2026-10-09 09:23:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:23:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:23:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:23:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:23:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 09:23:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 09:23:55 INFO imstat:::: Values --- 2026-10-09 09:23:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:23:55 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:23:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:23:55 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-10-09 09:23:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:23:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:23:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:23:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:23:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:23:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:23:55 INFO imstat:::: Statistics --- 2026-10-09 09:23:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:23:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:23:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:23:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:23:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-10-09 09:23:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-10-09 09:23:55 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-10-09 09:23:55 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-10-09 09:23:55 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-10-09 09:23:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:23:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:23:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:23:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:23:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:23:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:23:55 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 2026-10-09 09:23:55 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:23:55.342416 End time: 2026-10-09 09:23:55.369221 2026-10-09 09:23:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:23:55 INFO imstat::::casa ########################################## 2026-10-09 09:23:55 INFO phaseshift::::casa ########################################## 2026-10-09 09:23:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:23:55 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39.968292000deg' ) 2026-10-09 09:23:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:23:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:23:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:23:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:23:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:23:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:23:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:23:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:23:55 INFO MSTransformManager::open Select data 2026-10-09 09:23:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:24:00 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:24:00 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39.968292000deg' successfully parsed 2026-10-09 09:24:00 INFO phaseshift::::casa Shift phase center 2026-10-09 09:24:01 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:24:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:23:55.385816 End time: 2026-10-09 09:24:01.265524 2026-10-09 09:24:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:24:01 INFO phaseshift::::casa ########################################## 2026-10-09 09:24:01 INFO tclean::::casa ########################################## 2026-10-09 09:24:01 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:24:01 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:24:01 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:24:01 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:24:01 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:24:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:24:01 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:24:02 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:24:02 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:24:02 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:24:02 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:24:02 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:24:02 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:24:02 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:24:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:24:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028169 2026-10-09 09:24:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:24:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:24:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:24:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:24:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:24:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:24:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:24:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:24:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:24:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:24:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:24:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:24:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:24:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:24:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:24:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:24:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:24:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:24:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:24:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:24:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:24:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:24:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:24:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:24:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:24:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:24:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:24:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:24:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:24:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:24:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:24:23 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:24:23 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:24:23 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:24:24 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:24:25 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:24:28 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:24:01.324884 End time: 2026-10-09 09:24:28.439971 2026-10-09 09:24:28 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:24:28 INFO tclean::::casa ########################################## 2026-10-09 09:24:28 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:24:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:24:28 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:24:28 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:24:28 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:24:28 2026****** 2026-10-09 09:24:28 INFO ImageFitter::fit+ 2026-10-09 09:24:28 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:24:28 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:24:28 INFO ImageFitter::fit+ --- region: 2026-10-09 09:24:28 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:24:28 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:24:28 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:24:28 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:24:28 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:24:28 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:24:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:24:28 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:24:28 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:24:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:24:29 INFO imstat::::casa ########################################## 2026-10-09 09:24:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:24:29 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 ) 2026-10-09 09:24:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:24:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:24:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:24:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:24:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:24:29 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) 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:24:29 INFO imstat:::: Values --- 2026-10-09 09:24:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:24:29 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:24:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:24:29 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-09 09:24:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:24:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:24:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:24:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:24:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:24:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:24:29 INFO imstat:::: Statistics --- 2026-10-09 09:24:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:24:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:24:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:24:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:24:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-09 09:24:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-09 09:24:29 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-09 09:24:29 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-09 09:24:29 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:24:29 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-10-09 09:24:29 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:24:28.516690 End time: 2026-10-09 09:24:28.543151 2026-10-09 09:24:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:24:29 INFO imstat::::casa ########################################## 2026-10-09 09:24:29 INFO phaseshift::::casa ########################################## 2026-10-09 09:24:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:24:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 0.697578292rad' ) 2026-10-09 09:24:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:24:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:24:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:24:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:24:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:24:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:24:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:24:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:24:29 INFO MSTransformManager::open Select data 2026-10-09 09:24:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:24:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:24:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 0.697578292rad' successfully parsed 2026-10-09 09:24:36 INFO phaseshift::::casa Shift phase center 2026-10-09 09:24:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:24:38 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:24:28.559274 End time: 2026-10-09 09:24:37.534125 2026-10-09 09:24:38 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:24:38 INFO phaseshift::::casa ########################################## 2026-10-09 09:24:38 INFO tclean::::casa ########################################## 2026-10-09 09:24:38 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:24:38 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:24:38 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:24:38 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:24:38 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:24:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:24:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:24:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:24:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:24:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:24:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:24:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:24:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:24:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:24:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:24:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025801 2026-10-09 09:24:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:24:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:24:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:24:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:24:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:24:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:24:44 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:24:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:24:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:24:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:24:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:24:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:24:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:24:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:24:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:24:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:24:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:24:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:24:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:24:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:24:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:24:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:24:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:24:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:24:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:24:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:24:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:24:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:24:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:24:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:24:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:24:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:24:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:24:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:24:54 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:24:56 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:24:57 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:24:37.593452 End time: 2026-10-09 09:24:57.229504 2026-10-09 09:24:57 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:24:57 INFO tclean::::casa ########################################## 2026-10-09 09:24:57 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:24:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:24:57 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) 2026-10-09 09:24:57 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:24:57 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:24:57 2026****** 2026-10-09 09:24:57 INFO ImageFitter::fit+ 2026-10-09 09:24:57 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:24:57 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:24:57 INFO ImageFitter::fit+ --- region: 2026-10-09 09:24:57 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:24:57 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:24:57 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:24:57 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:24:57 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:24:57 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:24:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:24:57 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:24:57 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:24:57 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:24:57 INFO imstat::::casa ########################################## 2026-10-09 09:24:57 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:24:57 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 ) 2026-10-09 09:24:57 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:24:57 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:24:57 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:24:57 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:24:57 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:24:57 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) 2026-10-09 09:24:57 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:24:57 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:24:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:24:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:24:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:24:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:24:57 INFO imstat:::: Values --- 2026-10-09 09:24:57 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:24:57 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:24:57 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:24:57 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-10-09 09:24:57 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:24:57 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:24:57 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:24:57 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:24:57 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:24:57 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:24:57 INFO imstat:::: Statistics --- 2026-10-09 09:24:57 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:24:57 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:24:57 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:24:57 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:24:57 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-10-09 09:24:57 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-10-09 09:24:57 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-10-09 09:24:57 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-10-09 09:24:57 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-10-09 09:24:57 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:24:57 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:24:57 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:24:57 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:24:57 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:24:57 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:24:57 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 2026-10-09 09:24:57 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:24:57.302160 End time: 2026-10-09 09:24:57.328741 2026-10-09 09:24:57 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:24:57 INFO imstat::::casa ########################################## 2026-10-09 09:24:57 INFO phaseshift::::casa ########################################## 2026-10-09 09:24:57 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:24:57 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39d58m05.8512' ) 2026-10-09 09:24:57 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:24:57 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:24:57 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:24:57 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:24:57 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:24:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:24:57 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:24:57 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:24:57 INFO MSTransformManager::open Select data 2026-10-09 09:24:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:25:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:25:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39d58m05.8512' successfully parsed 2026-10-09 09:25:03 INFO phaseshift::::casa Shift phase center 2026-10-09 09:25:04 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:25:04 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:24:57.344975 End time: 2026-10-09 09:25:04.281919 2026-10-09 09:25:04 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:25:04 INFO phaseshift::::casa ########################################## 2026-10-09 09:25:04 INFO tclean::::casa ########################################## 2026-10-09 09:25:04 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:25:04 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:25:04 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:25:04 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:25:04 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:25:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:25:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:25:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:25:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:25:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:25:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:25:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:25:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:25:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:25:06 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:25:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028326 2026-10-09 09:25:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:25:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:25:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:25:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:25:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:25:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:25:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:25:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:25:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:25:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:25:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:25:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:25:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:25:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:25:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:25:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:25:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:25:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:25:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:25:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:25:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:25:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:25:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:25:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:25:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:25:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:25:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:25:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:25:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:25:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:25:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:25:20 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:25:20 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:25:20 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:25:21 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:25:22 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:25:24 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:25:04.334055 End time: 2026-10-09 09:25:23.750946 2026-10-09 09:25:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:25:24 INFO tclean::::casa ########################################## 2026-10-09 09:25:24 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:25:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:25:24 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) 2026-10-09 09:25:24 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:25:24 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:25:24 2026****** 2026-10-09 09:25:24 INFO ImageFitter::fit+ 2026-10-09 09:25:24 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:25:24 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:25:24 INFO ImageFitter::fit+ --- region: 2026-10-09 09:25:24 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:25:24 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:25:24 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:25:24 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:25:24 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:25:24 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:25:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:25:24 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) 2026-10-09 09:25:24 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:25:24 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:25:24 INFO imstat::::casa ########################################## 2026-10-09 09:25:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:25:24 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 ) 2026-10-09 09:25:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:25:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:25:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:25:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:25:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:25:24 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) 2026-10-09 09:25:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:25:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:25:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:25:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:25:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:25:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:25:24 INFO imstat:::: Values --- 2026-10-09 09:25:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:25:24 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:25:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:25:24 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-10-09 09:25:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:25:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:25:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:25:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 09:25:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:25:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:25:24 INFO imstat:::: Statistics --- 2026-10-09 09:25:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:25:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:25:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:25:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:25:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-10-09 09:25:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-10-09 09:25:24 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-10-09 09:25:24 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-10-09 09:25:24 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-10-09 09:25:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:25:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:25:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:25:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:25:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:25:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:25:24 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 2026-10-09 09:25:24 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:25:23.824857 End time: 2026-10-09 09:25:23.851662 2026-10-09 09:25:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:25:24 INFO imstat::::casa ########################################## 2026-10-09 09:25:24 INFO phaseshift::::casa ########################################## 2026-10-09 09:25:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:25:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 02:39:52.3901' ) 2026-10-09 09:25:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:25:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:25:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:25:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:25:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:25:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:25:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:25:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:25:24 INFO MSTransformManager::open Select data 2026-10-09 09:25:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:25:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 09:25:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 02:39:52.3901' successfully parsed 2026-10-09 09:25:28 INFO phaseshift::::casa Shift phase center 2026-10-09 09:25:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:25:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:25:23.868101 End time: 2026-10-09 09:25:29.688271 2026-10-09 09:25:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:25:30 INFO phaseshift::::casa ########################################## 2026-10-09 09:25:30 INFO tclean::::casa ########################################## 2026-10-09 09:25:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:25:30 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:25:30 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:25:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:25:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:25:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:25:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:25:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:25:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:25:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:25:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.13 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:25:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:25:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:25:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:25:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:25:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027632 2026-10-09 09:25:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:25:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:25:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:25:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:25:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:25:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:25:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:25:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:25:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:25:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:25:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:25:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:25:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:25:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:25:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:25:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:25:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:25:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:25:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:25:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:25:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:25:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:25:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:25:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:25:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:25:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:25:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:25:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:25:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:25:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:25:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:25:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:25:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:25:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:25:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:25:48 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:25:50 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:25:29.744581 End time: 2026-10-09 09:25:50.023820 2026-10-09 09:25:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:25:50 INFO tclean::::casa ########################################## 2026-10-09 09:25:50 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:25:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:25:50 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) 2026-10-09 09:25:50 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:25:50 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:25:50 2026****** 2026-10-09 09:25:50 INFO ImageFitter::fit+ 2026-10-09 09:25:50 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:25:50 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:25:50 INFO ImageFitter::fit+ --- region: 2026-10-09 09:25:50 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:25:50 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:25:50 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:25:50 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:25:50 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:25:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:25:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:25:50 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) 2026-10-09 09:25:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- ra: 128.000008 +/- 0.000127 pixels 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:25:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:25:50 INFO imstat::::casa ########################################## 2026-10-09 09:25:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:25:50 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 ) 2026-10-09 09:25:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:25:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:25:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:25:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:25:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:25:50 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) 2026-10-09 09:25:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:25:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:25:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:25:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:25:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 09:25:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 09:25:50 INFO imstat:::: Values --- 2026-10-09 09:25:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:25:50 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:25:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:25:50 INFO imstat:::: -- minimum value [min]: -7.78143e-05 Jy/beam 2026-10-09 09:25:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:25:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:25:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:25:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:25:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:25:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:25:50 INFO imstat:::: Statistics --- 2026-10-09 09:25:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:25:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:25:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:25:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:25:50 INFO imstat:::: -- Median of the pixel values [median]: -1.86838e-05 Jy/beam 2026-10-09 09:25:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73769e-05 Jy/beam 2026-10-09 09:25:50 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-10-09 09:25:50 INFO imstat:::: -- First quartile [q1]: -3.45216e-05 Jy/beam 2026-10-09 09:25:50 INFO imstat:::: -- Third quartile [q3]: 1.1124e-06 Jy/beam 2026-10-09 09:25:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:25:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:25:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:25:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:25:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:25:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:25:50 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 2026-10-09 09:25:50 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:25:50.105658 End time: 2026-10-09 09:25:50.139684 2026-10-09 09:25:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:25:50 INFO imstat::::casa ########################################## 2026-10-09 09:25:50 INFO phaseshift::::casa ########################################## 2026-10-09 09:25:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:25:50 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 19:52:05.6524 39.968292000deg' ) 2026-10-09 09:25:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:25:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:25:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:25:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:25:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:25:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:25:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:25:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:25:50 INFO MSTransformManager::open Select data 2026-10-09 09:25:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:25:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:25:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39.968292000deg' successfully parsed 2026-10-09 09:25:55 INFO phaseshift::::casa Shift phase center 2026-10-09 09:25:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:25:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:25:50.166567 End time: 2026-10-09 09:25:56.729678 2026-10-09 09:25:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:25:57 INFO phaseshift::::casa ########################################## 2026-10-09 09:25:57 INFO tclean::::casa ########################################## 2026-10-09 09:25:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:25:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:25:57 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:25:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:25:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:25:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:25:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:25:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:25:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:25:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:25:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.13 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:25:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:25:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:25:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:25:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:25:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021037 2026-10-09 09:25:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:25:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:26:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:26:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:26:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:26:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:26:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:26:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:26:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:26:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:26:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:26:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:26:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:26:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:26:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:26:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:26:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:26:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:26:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:26:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:26:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:26:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:26:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:26:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:26:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:26:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:26:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:26:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:26:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:26:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:26:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:26:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:26:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:26:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:26:15 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:26:15 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:26:18 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:25:56.785756 End time: 2026-10-09 09:26:17.659146 2026-10-09 09:26:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:26:18 INFO tclean::::casa ########################################## 2026-10-09 09:26:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:26:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:26:18 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) 2026-10-09 09:26:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:26:18 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:26:18 2026****** 2026-10-09 09:26:18 INFO ImageFitter::fit+ 2026-10-09 09:26:18 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:26:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:26:18 INFO ImageFitter::fit+ --- region: 2026-10-09 09:26:18 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:26:18 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:26:18 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:26:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:26:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:26:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:26:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:26:18 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) 2026-10-09 09:26:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:26:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:26:18 INFO imstat::::casa ########################################## 2026-10-09 09:26:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:26:18 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 ) 2026-10-09 09:26:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:26:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:26:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:26:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:26:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:26:18 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) 2026-10-09 09:26:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:26:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:26:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:26:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:26:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:26:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:26:18 INFO imstat:::: Values --- 2026-10-09 09:26:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:26:18 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:26:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:26:18 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-10-09 09:26:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:26:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-09 09:26:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:26:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-09 09:26:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:26:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:26:18 INFO imstat:::: Statistics --- 2026-10-09 09:26:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:26:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:26:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:26:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:26:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-10-09 09:26:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-10-09 09:26:18 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-10-09 09:26:18 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-10-09 09:26:18 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-10-09 09:26:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:26:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:26:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:26:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:26:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:26:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:26:18 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 2026-10-09 09:26:18 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:26:17.732475 End time: 2026-10-09 09:26:17.758461 2026-10-09 09:26:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:26:18 INFO imstat::::casa ########################################## 2026-10-09 09:26:18 INFO phaseshift::::casa ########################################## 2026-10-09 09:26:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:26:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 0.697578292rad' ) 2026-10-09 09:26:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:26:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:26:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:26:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:26:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:26:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:26:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:26:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:26:18 INFO MSTransformManager::open Select data 2026-10-09 09:26:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:26:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:26:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 0.697578292rad' successfully parsed 2026-10-09 09:26:24 INFO phaseshift::::casa Shift phase center 2026-10-09 09:26:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:26:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:26:17.774205 End time: 2026-10-09 09:26:25.182734 2026-10-09 09:26:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:26:25 INFO phaseshift::::casa ########################################## 2026-10-09 09:26:25 INFO tclean::::casa ########################################## 2026-10-09 09:26:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:26:25 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:26:25 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:26:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:26:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:26:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:26:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:26:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:26:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:26:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:26:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.13 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:26:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:26:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:26:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:26:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:26:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025805 2026-10-09 09:26:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:26:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:26:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:26:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:26:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:26:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:26:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:26:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:26:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:26:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:26:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:26:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:26:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:26:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:26:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:26:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:26:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:26:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:26:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:26:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:26:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:26:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:26:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:26:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:26:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:26:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:26:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:26:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:26:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:26:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:26:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:26:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:26:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:26:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:26:43 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:26:44 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:26:46 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:26:25.237287 End time: 2026-10-09 09:26:45.534180 2026-10-09 09:26:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:26:46 INFO tclean::::casa ########################################## 2026-10-09 09:26:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:26:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:26:46 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-09 09:26:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:26:46 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:26:46 2026****** 2026-10-09 09:26:46 INFO ImageFitter::fit+ 2026-10-09 09:26:46 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:26:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:26:46 INFO ImageFitter::fit+ --- region: 2026-10-09 09:26:46 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:26:46 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:26:46 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:26:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:26:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:26:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:26:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:26:46 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:26:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:26:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:26:46 INFO imstat::::casa ########################################## 2026-10-09 09:26:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:26:46 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:26:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:26:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:26:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:26:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:26:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:26:46 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:26:46 INFO imstat:::: Values --- 2026-10-09 09:26:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:26:46 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:26:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:26:46 INFO imstat:::: -- minimum value [min]: -7.7781e-05 Jy/beam 2026-10-09 09:26:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:26:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:26:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:26:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:26:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:26:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:26:46 INFO imstat:::: Statistics --- 2026-10-09 09:26:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:26:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:26:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:26:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:26:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-10-09 09:26:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73593e-05 Jy/beam 2026-10-09 09:26:46 INFO imstat:::: -- IQR [quartile]: 3.56161e-05 Jy/beam 2026-10-09 09:26:46 INFO imstat:::: -- First quartile [q1]: -3.45125e-05 Jy/beam 2026-10-09 09:26:46 INFO imstat:::: -- Third quartile [q3]: 1.10364e-06 Jy/beam 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:26:46 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778104e-05 4.999996e+00 2026-10-09 09:26:46 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:26:45.614983 End time: 2026-10-09 09:26:45.641558 2026-10-09 09:26:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:26:46 INFO imstat::::casa ########################################## 2026-10-09 09:26:46 INFO phaseshift::::casa ########################################## 2026-10-09 09:26:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:26:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39d58m05.8512' ) 2026-10-09 09:26:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:26:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:26:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:26:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:26:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:26:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:26:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:26:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:26:46 INFO MSTransformManager::open Select data 2026-10-09 09:26:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:26:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:26:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39d58m05.8512' successfully parsed 2026-10-09 09:26:50 INFO phaseshift::::casa Shift phase center 2026-10-09 09:26:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:26:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:26:45.658066 End time: 2026-10-09 09:26:51.696742 2026-10-09 09:26:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:26:52 INFO phaseshift::::casa ########################################## 2026-10-09 09:26:52 INFO tclean::::casa ########################################## 2026-10-09 09:26:52 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:26:52 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:26:52 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:26:52 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:26:52 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:26:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:26:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:26:52 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:26:52 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:26:52 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:26:52 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:26:52 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:26:52 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:26:52 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:26:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:26:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02576 2026-10-09 09:26:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:26:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:26:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:26:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:26:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:26:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:26:56 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:26:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:26:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:26:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:26:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:26:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:26:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:26:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:26:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:27:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:27:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:27:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:27:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:27:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:27:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:27:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:27:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:27:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:27:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:27:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:27:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:27:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:27:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:27:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:27:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:27:06 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:27:06 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:27:06 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:27:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:27:08 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:27:11 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:26:51.753024 End time: 2026-10-09 09:27:10.580430 2026-10-09 09:27:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:27:11 INFO tclean::::casa ########################################## 2026-10-09 09:27:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:27:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:27:11 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) 2026-10-09 09:27:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:27:11 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:27:11 2026****** 2026-10-09 09:27:11 INFO ImageFitter::fit+ 2026-10-09 09:27:11 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:27:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:27:11 INFO ImageFitter::fit+ --- region: 2026-10-09 09:27:11 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:27:11 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:27:11 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:27:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:27:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:27:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:27:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:27:11 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:27:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:27:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:27:11 INFO imstat::::casa ########################################## 2026-10-09 09:27:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:27:11 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 ) 2026-10-09 09:27:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:27:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:27:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:27:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:27:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:27:11 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) 2026-10-09 09:27:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:27:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:27:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:27:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:27:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:27:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:27:11 INFO imstat:::: Values --- 2026-10-09 09:27:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:27:11 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:27:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:27:11 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-09 09:27:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:27:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:27:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:27:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:27:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:27:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:27:11 INFO imstat:::: Statistics --- 2026-10-09 09:27:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:27:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:27:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:27:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:27:11 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-09 09:27:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-09 09:27:11 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-09 09:27:11 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-09 09:27:11 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-09 09:27:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:27:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:27:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:27:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:27:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:27:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:27:11 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 2026-10-09 09:27:11 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:27:10.656518 End time: 2026-10-09 09:27:10.695792 2026-10-09 09:27:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:27:11 INFO imstat::::casa ########################################## 2026-10-09 09:27:11 INFO phaseshift::::casa ########################################## 2026-10-09 09:27:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:27:11 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 02:39:52.3901' ) 2026-10-09 09:27:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:27:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:27:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:27:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:27:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:27:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:27:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:27:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:27:11 INFO MSTransformManager::open Select data 2026-10-09 09:27:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:27:16 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 ".". 2026-10-09 09:27:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 02:39:52.3901' successfully parsed 2026-10-09 09:27:16 INFO phaseshift::::casa Shift phase center 2026-10-09 09:27:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:27:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:27:10.715302 End time: 2026-10-09 09:27:18.976824 2026-10-09 09:27:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:27:19 INFO phaseshift::::casa ########################################## 2026-10-09 09:27:19 INFO tclean::::casa ########################################## 2026-10-09 09:27:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:27:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:27:19 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:27:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:27:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:27:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:27:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:27:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:27:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:27:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:27:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:27:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:27:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:27:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:27:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:27:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027925 2026-10-09 09:27:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:27:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:27:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:27:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:27:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:27:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:27:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:27:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:27:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:27:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:27:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:27:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:27:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:27:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:27:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:27:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:27:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:27:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:27:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:27:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:27:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:27:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:27:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:27:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:27:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:27:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:27:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:27:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:27:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:27:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:27:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:27:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:27:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:27:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:27:35 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:27:35 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:27:37 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:27:19.036427 End time: 2026-10-09 09:27:37.285044 2026-10-09 09:27:37 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:27:37 INFO tclean::::casa ########################################## 2026-10-09 09:27:37 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:27:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:27:37 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) 2026-10-09 09:27:37 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:27:37 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:27:37 2026****** 2026-10-09 09:27:37 INFO ImageFitter::fit+ 2026-10-09 09:27:37 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:27:37 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:27:37 INFO ImageFitter::fit+ --- region: 2026-10-09 09:27:37 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:27:37 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:27:37 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:27:37 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:27:37 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:27:37 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:27:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:27:37 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) 2026-10-09 09:27:37 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:27:37 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:27:37 INFO imstat::::casa ########################################## 2026-10-09 09:27:37 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:27:37 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 ) 2026-10-09 09:27:37 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:27:37 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:27:37 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:27:37 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:27:37 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:27:37 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) 2026-10-09 09:27:37 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:27:37 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:27:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:27:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:27:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 09:27:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 09:27:37 INFO imstat:::: Values --- 2026-10-09 09:27:37 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:27:37 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:27:37 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:27:37 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-10-09 09:27:37 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:27:37 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:27:37 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:27:37 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:27:37 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:27:37 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:27:37 INFO imstat:::: Statistics --- 2026-10-09 09:27:37 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:27:37 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:27:37 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:27:37 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:27:37 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-10-09 09:27:37 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-10-09 09:27:37 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-10-09 09:27:37 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-10-09 09:27:37 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-10-09 09:27:37 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:27:37 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:27:37 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:27:37 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:27:37 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:27:37 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:27:37 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 2026-10-09 09:27:37 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:27:37.358194 End time: 2026-10-09 09:27:37.384466 2026-10-09 09:27:37 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:27:37 INFO imstat::::casa ########################################## 2026-10-09 09:27:37 INFO phaseshift::::casa ########################################## 2026-10-09 09:27:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:27:37 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39.968292000deg' ) 2026-10-09 09:27:37 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:27:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:27:37 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:27:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:27:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:27:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:27:37 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:27:37 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:27:37 INFO MSTransformManager::open Select data 2026-10-09 09:27:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:27:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:27:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39.968292000deg' successfully parsed 2026-10-09 09:27:42 INFO phaseshift::::casa Shift phase center 2026-10-09 09:27:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:27:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:27:37.400679 End time: 2026-10-09 09:27:43.279363 2026-10-09 09:27:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:27:43 INFO phaseshift::::casa ########################################## 2026-10-09 09:27:43 INFO tclean::::casa ########################################## 2026-10-09 09:27:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:27:43 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:27:43 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:27:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:27:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:27:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:27:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:27:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:27:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:27:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:27:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.14 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:27:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:27:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:27:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:27:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:27:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02787 2026-10-09 09:27:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:27:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:27:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:27:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:27:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:27:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:27:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:27:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:27:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:27:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:27:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:27:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:27:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:27:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:27:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:27:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:27:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:27:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:27:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:27:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:27:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:27:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:27:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:27:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:27:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:27:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:27:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:27:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:27:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:27:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:28:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:28:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:28:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:28:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:28:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:28:02 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:28:04 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:27:43.321408 End time: 2026-10-09 09:28:03.960106 2026-10-09 09:28:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:28:04 INFO tclean::::casa ########################################## 2026-10-09 09:28:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:28:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:28:04 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) 2026-10-09 09:28:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:28:04 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:28:04 2026****** 2026-10-09 09:28:04 INFO ImageFitter::fit+ 2026-10-09 09:28:04 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:28:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:28:04 INFO ImageFitter::fit+ --- region: 2026-10-09 09:28:04 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:28:04 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:28:04 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:28:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:28:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:28:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:28:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:28:04 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) 2026-10-09 09:28:04 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:28:04 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:28:04 INFO imstat::::casa ########################################## 2026-10-09 09:28:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:28:04 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 ) 2026-10-09 09:28:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:28:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:28:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:28:04 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:28:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:28:04 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) 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:28:04 INFO imstat:::: Values --- 2026-10-09 09:28:04 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:28:04 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:28:04 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:28:04 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-09 09:28:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:28:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:28:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:28:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:28:04 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:28:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:28:04 INFO imstat:::: Statistics --- 2026-10-09 09:28:04 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:28:04 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:28:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:28:04 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:28:04 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-09 09:28:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-09 09:28:04 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-09 09:28:04 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-09 09:28:04 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:28:04 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-10-09 09:28:04 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:28:04.040802 End time: 2026-10-09 09:28:04.079137 2026-10-09 09:28:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:28:04 INFO imstat::::casa ########################################## 2026-10-09 09:28:04 INFO phaseshift::::casa ########################################## 2026-10-09 09:28:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:28:04 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 298.023551625deg 0.697578292rad' ) 2026-10-09 09:28:04 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:28:04 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:28:04 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:28:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:28:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:28:04 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:28:04 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:28:04 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:28:04 INFO MSTransformManager::open Select data 2026-10-09 09:28:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:28:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:28:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 0.697578292rad' successfully parsed 2026-10-09 09:28:08 INFO phaseshift::::casa Shift phase center 2026-10-09 09:28:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:28:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:28:04.102203 End time: 2026-10-09 09:28:09.832686 2026-10-09 09:28:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:28:10 INFO phaseshift::::casa ########################################## 2026-10-09 09:28:10 INFO tclean::::casa ########################################## 2026-10-09 09:28:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:28:10 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:28:10 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:28:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:28:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:28:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:28:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:28:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:28:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:28:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:28:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.13 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:28:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:28:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:28:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:28:12 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:28:12 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028146 2026-10-09 09:28:12 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:28:12 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:28:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:28:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:28:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:28:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:28:15 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:28:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:28:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:28:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:28:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:28:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:28:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:28:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:28:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:28:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:28:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:28:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:28:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:28:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:28:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:28:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:28:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:28:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:28:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:28:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:28:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:28:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:28:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:28:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:28:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:28:24 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:28:24 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:28:24 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:28:25 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:28:25 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:28:27 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:28:09.892475 End time: 2026-10-09 09:28:27.285693 2026-10-09 09:28:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:28:27 INFO tclean::::casa ########################################## 2026-10-09 09:28:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:28:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:28:27 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) 2026-10-09 09:28:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:28:27 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:28:27 2026****** 2026-10-09 09:28:27 INFO ImageFitter::fit+ 2026-10-09 09:28:27 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:28:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:28:27 INFO ImageFitter::fit+ --- region: 2026-10-09 09:28:27 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:28:27 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:28:27 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:28:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:28:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:28:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:28:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:28:27 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) 2026-10-09 09:28:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:28:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:28:27 INFO imstat::::casa ########################################## 2026-10-09 09:28:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:28:27 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 ) 2026-10-09 09:28:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:28:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:28:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:28:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:28:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:28:27 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) 2026-10-09 09:28:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:28:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:28:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:28:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:28:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:28:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:28:27 INFO imstat:::: Values --- 2026-10-09 09:28:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:28:27 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:28:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:28:27 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-10-09 09:28:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:28:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:28:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:28:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:28:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:28:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:28:27 INFO imstat:::: Statistics --- 2026-10-09 09:28:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:28:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:28:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:28:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:28:27 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-10-09 09:28:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-10-09 09:28:27 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-10-09 09:28:27 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-10-09 09:28:27 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-10-09 09:28:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:28:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:28:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:28:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:28:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:28:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:28:27 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 2026-10-09 09:28:27 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:28:27.363409 End time: 2026-10-09 09:28:27.390566 2026-10-09 09:28:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:28:27 INFO imstat::::casa ########################################## 2026-10-09 09:28:27 INFO phaseshift::::casa ########################################## 2026-10-09 09:28:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:28:27 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39d58m05.8512' ) 2026-10-09 09:28:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:28:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:28:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:28:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:28:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:28:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:28:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:28:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:28:27 INFO MSTransformManager::open Select data 2026-10-09 09:28:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:28:31 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:28:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39d58m05.8512' successfully parsed 2026-10-09 09:28:31 INFO phaseshift::::casa Shift phase center 2026-10-09 09:28:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:28:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:28:27.407327 End time: 2026-10-09 09:28:32.864473 2026-10-09 09:28:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:28:33 INFO phaseshift::::casa ########################################## 2026-10-09 09:28:33 INFO tclean::::casa ########################################## 2026-10-09 09:28:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:28:33 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:28:33 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:28:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:28:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:28:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:28:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:28:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:28:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:28:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:28:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.13 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:28:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:28:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:28:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:28:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:28:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024167 2026-10-09 09:28:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:28:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:28:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:28:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:28:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:28:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:28:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:28:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:28:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:28:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:28:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:28:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:28:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:28:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:28:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:28:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:28:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:28:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:28:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:28:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:28:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:28:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:28:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:28:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:28:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:28:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:28:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:28:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:28:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:28:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:28:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:28:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:28:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:28:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:28:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:28:47 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:28:49 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:28:32.922586 End time: 2026-10-09 09:28:48.519315 2026-10-09 09:28:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:28:49 INFO tclean::::casa ########################################## 2026-10-09 09:28:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:28:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:28:49 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) 2026-10-09 09:28:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:28:49 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:28:49 2026****** 2026-10-09 09:28:49 INFO ImageFitter::fit+ 2026-10-09 09:28:49 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:28:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:28:49 INFO ImageFitter::fit+ --- region: 2026-10-09 09:28:49 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:28:49 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:28:49 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:28:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:28:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:28:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:28:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:28:49 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:28:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:28:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:28:49 INFO imstat::::casa ########################################## 2026-10-09 09:28:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:28:49 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-09 09:28:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:28:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:28:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:28:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:28:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:28:49 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-09 09:28:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:28:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:28:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:28:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:28:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:28:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:28:49 INFO imstat:::: Values --- 2026-10-09 09:28:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:28:49 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:28:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:28:49 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-10-09 09:28:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:28:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:28:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:28:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:28:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:28:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:28:49 INFO imstat:::: Statistics --- 2026-10-09 09:28:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:28:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:28:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:28:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:28:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-10-09 09:28:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-10-09 09:28:49 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-10-09 09:28:49 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-10-09 09:28:49 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-10-09 09:28:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:28:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:28:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:28:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:28:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:28:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:28:49 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 2026-10-09 09:28:49 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:28:48.603351 End time: 2026-10-09 09:28:48.633073 2026-10-09 09:28:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:28:49 INFO imstat::::casa ########################################## 2026-10-09 09:28:49 INFO phaseshift::::casa ########################################## 2026-10-09 09:28:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:28:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 02:39:52.3901' ) 2026-10-09 09:28:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:28:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:28:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:28:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:28:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:28:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:28:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:28:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:28:49 INFO MSTransformManager::open Select data 2026-10-09 09:28:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:28:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-09 09:28:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 02:39:52.3901' successfully parsed 2026-10-09 09:28:54 INFO phaseshift::::casa Shift phase center 2026-10-09 09:28:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:28:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:28:48.650569 End time: 2026-10-09 09:28:55.420096 2026-10-09 09:28:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:28:55 INFO phaseshift::::casa ########################################## 2026-10-09 09:28:55 INFO tclean::::casa ########################################## 2026-10-09 09:28:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:28:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:28:55 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:28:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:28:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:28:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:28:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:28:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:28:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:28:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:28:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.13 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:28:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:28:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:28:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:28:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:28:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024719 2026-10-09 09:28:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:28:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:28:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:28:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:29:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:29:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:29:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:29:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:29:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:29:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:29:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:29:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:29:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:29:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:29:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:29:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:29:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:29:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:29:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:29:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:29:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:29:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:29:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:29:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:29:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:29:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:29:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-09 09:29:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:29:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:29:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:29:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:29:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:29:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:29:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:29:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:29:09 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:29:11 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:28:55.479657 End time: 2026-10-09 09:29:11.078689 2026-10-09 09:29:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:29:11 INFO tclean::::casa ########################################## 2026-10-09 09:29:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:29:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:29:11 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) 2026-10-09 09:29:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:29:11 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:29:11 2026****** 2026-10-09 09:29:11 INFO ImageFitter::fit+ 2026-10-09 09:29:11 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:29:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:29:11 INFO ImageFitter::fit+ --- region: 2026-10-09 09:29:11 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:29:11 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:29:11 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:29:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:29:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:29:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:29:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:29:11 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-09 09:29:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116885 Jy 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126501 Jy 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:29:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:29:11 INFO imstat::::casa ########################################## 2026-10-09 09:29:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:29:11 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 ) 2026-10-09 09:29:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:29:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:29:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:29:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:29:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:29:11 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) 2026-10-09 09:29:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:29:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:29:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:29:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:29:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-09 09:29:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-09 09:29:11 INFO imstat:::: Values --- 2026-10-09 09:29:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:29:11 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:29:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:29:11 INFO imstat:::: -- minimum value [min]: -7.78268e-05 Jy/beam 2026-10-09 09:29:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:29:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:29:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:29:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:29:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:29:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:29:11 INFO imstat:::: Statistics --- 2026-10-09 09:29:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:29:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:29:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:29:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:29:11 INFO imstat:::: -- Median of the pixel values [median]: -1.8675e-05 Jy/beam 2026-10-09 09:29:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73782e-05 Jy/beam 2026-10-09 09:29:11 INFO imstat:::: -- IQR [quartile]: 3.56598e-05 Jy/beam 2026-10-09 09:29:11 INFO imstat:::: -- First quartile [q1]: -3.45364e-05 Jy/beam 2026-10-09 09:29:11 INFO imstat:::: -- Third quartile [q3]: 1.12335e-06 Jy/beam 2026-10-09 09:29:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:29:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:29:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:29:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:29:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:29:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:29:11 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 2026-10-09 09:29:11 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:29:11.159170 End time: 2026-10-09 09:29:11.186029 2026-10-09 09:29:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:29:11 INFO imstat::::casa ########################################## 2026-10-09 09:29:11 INFO phaseshift::::casa ########################################## 2026-10-09 09:29:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:29:11 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39.968292000deg' ) 2026-10-09 09:29:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:29:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:29:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:29:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:29:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:29:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:29:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:29:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:29:11 INFO MSTransformManager::open Select data 2026-10-09 09:29:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:29:15 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:29:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39.968292000deg' successfully parsed 2026-10-09 09:29:15 INFO phaseshift::::casa Shift phase center 2026-10-09 09:29:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:29:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:29:11.202606 End time: 2026-10-09 09:29:15.887749 2026-10-09 09:29:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:29:16 INFO phaseshift::::casa ########################################## 2026-10-09 09:29:16 INFO tclean::::casa ########################################## 2026-10-09 09:29:16 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:29:16 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:29:16 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:29:16 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:29:16 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:29:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:29:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:29:16 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:29:16 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:29:16 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:29:16 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.13 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:29:16 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:29:16 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:29:16 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:29:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:29:17 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011986 2026-10-09 09:29:17 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:29:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:29:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:29:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:29:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:29:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:29:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:29:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:29:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:29:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:29:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:29:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:29:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:29:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:29:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:29:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:29:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:29:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:29:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:29:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:29:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:29:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:29:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:29:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:29:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:29:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:29:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:29:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:29:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:29:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:29:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:29:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:29:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:29:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:29:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:29:28 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:29:29 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:29:15.929400 End time: 2026-10-09 09:29:28.925853 2026-10-09 09:29:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:29:29 INFO tclean::::casa ########################################## 2026-10-09 09:29:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:29:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:29:29 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) 2026-10-09 09:29:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:29:29 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:29:29 2026****** 2026-10-09 09:29:29 INFO ImageFitter::fit+ 2026-10-09 09:29:29 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:29:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:29:29 INFO ImageFitter::fit+ --- region: 2026-10-09 09:29:29 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:29:29 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:29:29 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:29:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:29:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:29:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:29:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:29:29 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) 2026-10-09 09:29:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:29:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:29:29 INFO imstat::::casa ########################################## 2026-10-09 09:29:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:29:29 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 ) 2026-10-09 09:29:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:29:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:29:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:29:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:29:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:29:29 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) 2026-10-09 09:29:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:29:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:29:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:29:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:29:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:29:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:29:29 INFO imstat:::: Values --- 2026-10-09 09:29:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:29:29 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:29:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:29:29 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-10-09 09:29:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:29:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:29:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:29:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:29:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:29:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:29:29 INFO imstat:::: Statistics --- 2026-10-09 09:29:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:29:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:29:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:29:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:29:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-10-09 09:29:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-10-09 09:29:29 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-10-09 09:29:29 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-10-09 09:29:29 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-10-09 09:29:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:29:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:29:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:29:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:29:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:29:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:29:29 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 2026-10-09 09:29:29 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:29:29.006542 End time: 2026-10-09 09:29:29.035145 2026-10-09 09:29:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:29:29 INFO imstat::::casa ########################################## 2026-10-09 09:29:29 INFO phaseshift::::casa ########################################## 2026-10-09 09:29:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-09 09:29:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 0.697578292rad' ) 2026-10-09 09:29:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-09 09:29:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-09 09:29:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-09 09:29:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-09 09:29:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-09 09:29:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-09 09:29:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-09 09:29:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-09 09:29:29 INFO MSTransformManager::open Select data 2026-10-09 09:29:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-09 09:29:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-09 09:29:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 0.697578292rad' successfully parsed 2026-10-09 09:29:33 INFO phaseshift::::casa Shift phase center 2026-10-09 09:29:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-09 09:29:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-09 09:29:29.052300 End time: 2026-10-09 09:29:34.955107 2026-10-09 09:29:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-09 09:29:35 INFO phaseshift::::casa ########################################## 2026-10-09 09:29:35 INFO tclean::::casa ########################################## 2026-10-09 09:29:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-09 09:29:35 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-09 09:29:35 INFO tclean::::casa Verifying Input Parameters 2026-10-09 09:29:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-09 09:29:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-09 09:29:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:29:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-09 09:29:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-09 09:29:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-09 09:29:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-09 09:29:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 23.13 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-09 09:29:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-09 09:29:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-09 09:29:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-09 09:29:37 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-09 09:29:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.0261 2026-10-09 09:29:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:29:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-09 09:29:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-09 09:29:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-09 09:29:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-09 09:29:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-09 09:29:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-09 09:29:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:29:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-09 09:29:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-09 09:29:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-09 09:29:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-09 09:29:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-09 09:29:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:29:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-09 09:29:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-09 09:29:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-09 09:29:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-09 09:29:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-09 09:29:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:29:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-09 09:29:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-09 09:29:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-09 09:29:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-09 09:29:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-09 09:29:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-09 09:29:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-09 09:29:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-09 09:29:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-09 09:29:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-09 09:29:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-09 09:29:54 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-09 09:29:54 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-09 09:29:54 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-09 09:29:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-09 09:29:57 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.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt'] 2026-10-09 09:30:01 INFO tclean::::casa Task tclean complete. Start time: 2026-10-09 09:29:35.014949 End time: 2026-10-09 09:30:00.921185 2026-10-09 09:30:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-09 09:30:01 INFO tclean::::casa ########################################## 2026-10-09 09:30:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-09 09:30:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:30:01 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) 2026-10-09 09:30:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-09 09:30:01 INFO ImageFitter::fit ****** Fit performed at Fri Oct 9 09:30:01 2026****** 2026-10-09 09:30:01 INFO ImageFitter::fit+ 2026-10-09 09:30:01 INFO ImageFitter::fit+ Input parameters --- 2026-10-09 09:30:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-09 09:30:01 INFO ImageFitter::fit+ --- region: 2026-10-09 09:30:01 INFO ImageFitter::fit+ --- channel: 0 2026-10-09 09:30:01 INFO ImageFitter::fit+ --- stokes: I 2026-10-09 09:30:01 INFO ImageFitter::fit+ --- mask: 2026-10-09 09:30:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-09 09:30:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-09 09:30:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-09 09:30:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:30:01 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) 2026-10-09 09:30:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ Position --- 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-09 09:30:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-09 09:30:01 INFO imstat::::casa ########################################## 2026-10-09 09:30:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-09 09:30:01 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 ) 2026-10-09 09:30:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-09 09:30:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-09 09:30:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-09 09:30:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-09 09:30:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-09 09:30:01 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) 2026-10-09 09:30:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-09 09:30:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-09 09:30:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-09 09:30:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-09 09:30:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-09 09:30:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-09 09:30:01 INFO imstat:::: Values --- 2026-10-09 09:30:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-09 09:30:01 INFO imstat:::: -- number of points [npts]: 65536 2026-10-09 09:30:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-09 09:30:01 INFO imstat:::: -- minimum value [min]: -7.77956e-05 Jy/beam 2026-10-09 09:30:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-09 09:30:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-09 09:30:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-09 09:30:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-09 09:30:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-09 09:30:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-09 09:30:01 INFO imstat:::: Statistics --- 2026-10-09 09:30:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-09 09:30:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-09 09:30:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-09 09:30:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-09 09:30:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86648e-05 Jy/beam 2026-10-09 09:30:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73536e-05 Jy/beam 2026-10-09 09:30:01 INFO imstat:::: -- IQR [quartile]: 3.5639e-05 Jy/beam 2026-10-09 09:30:01 INFO imstat:::: -- First quartile [q1]: -3.45152e-05 Jy/beam 2026-10-09 09:30:01 INFO imstat:::: -- Third quartile [q3]: 1.12373e-06 Jy/beam 2026-10-09 09:30:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-09 09:30:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-09 09:30:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-09 09:30:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-09 09:30:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-09 09:30:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-09 09:30:01 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 2026-10-09 09:30:01 INFO imstat::::casa Task imstat complete. Start time: 2026-10-09 09:30:00.981378 End time: 2026-10-09 09:30:01.001984 2026-10-09 09:30:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-09 09:30:01 INFO imstat::::casa ########################################## . ---------------------------------------------------------------------- Ran 27 tests in 2054.212s OK Generating XML reports...