2026-10-08 09:39:39 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-10-08 09:39:39 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-10-08 09:39:39 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-10-08 09:39:39 INFO ::casa 2026-10-08 09:39:39 INFO ::casa config values 2026-10-08 09:39:39 INFO ::casa agg = False 2026-10-08 09:39:39 INFO ::casa cachedir = '/home/casatest/.casa' 2026-10-08 09:39:39 INFO ::casa casaconfig_verbose = 1 2026-10-08 09:39:39 INFO ::casa colors = 'Neutral' 2026-10-08 09:39:39 INFO ::casa data_auto_update = False 2026-10-08 09:39:39 INFO ::casa data_update_interval = 1 2026-10-08 09:39:39 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-10-08 09:39:39 INFO ::casa iplog = False 2026-10-08 09:39:39 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/ipython-20261008-093932.log' 2026-10-08 09:39:39 INFO ::casa log2term = True 2026-10-08 09:39:39 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/casa-20261008-093932.log' 2026-10-08 09:39:39 INFO ::casa measures_auto_update = False 2026-10-08 09:39:39 INFO ::casa measures_site = ['https://iers.astron.nl/', 'https://go.nrao.edu/iers/'] 2026-10-08 09:39:39 INFO ::casa measures_site_interval = 2 2026-10-08 09:39:39 INFO ::casa measures_update_interval = 1 2026-10-08 09:39:39 INFO ::casa measurespath = '/opt/casa/data/master' 2026-10-08 09:39:39 INFO ::casa nogui = False 2026-10-08 09:39:39 INFO ::casa nologfile = False 2026-10-08 09:39:39 INFO ::casa nologger = True 2026-10-08 09:39:39 INFO ::casa pipeline = False 2026-10-08 09:39:39 INFO ::casa skipnetworkcheck = False 2026-10-08 09:39:39 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-10-08 09:39:39 INFO ::casa user_site = False 2026-10-08 09:39:39 INFO ::casa 2026-10-08 09:39:39 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-10-08 09:39:39 INFO ::casa measures version : WSRT_Measures_20211217-160001.ztar 2026-10-08 09:39:39 INFO ::casa 2026-10-08 09:39:39 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-10-08 09:39:39 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-10-08 09:39:39 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-10-08 09:39:39 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/10/07/15:15, 2027/01/05/00:00:00 2026-10-08 09:39:39 INFO ::casa TAI_UTC (version date, last date in table (UTC)): 2026/10/05/15:15, 2017/01/01/00:00:00 Running tests... ---------------------------------------------------------------------- Using user configuration file /home/casatest/.casa/config.py No event loop hook running. Using matplotlib backend: agg CASA 6.7.7.13 -- Common Astronomy Software Applications [6.7.7.13] 2026-10-08 09:39:40 INFO phaseshift::::casa ########################################## 2026-10-08 09:39:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:39:40 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'} ) 2026-10-08 09:39:41 INFO MSTransformManager::parseMsSpecParams Input file name is /opt/casa/data/casatestdata/unittest/phaseshift/split11.ms 2026-10-08 09:39:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:39:41 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshift11.ms 2026-10-08 09:39:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:39:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:39:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:39:41 INFO MSTransformManager::open Select data 2026-10-08 09:39:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:39:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-08 09:39:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 1h27m38.337s +5d25m38.886s' successfully parsed for field 0 2026-10-08 09:39:49 INFO phaseshift::::casa Shift phase center 2026-10-08 09:39:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:39:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:39:40.391976 End time: 2026-10-08 09:39:51.776731 2026-10-08 09:39:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:39:52 INFO phaseshift::::casa ########################################## .2026-10-08 09:39:52 INFO phaseshift::::casa ########################################## 2026-10-08 09:39:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:39:52 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'GALACTIC 19h53m50 40d06m00', '2': 'GALACTIC 22h01m02 40d04m03'} ) 2026-10-08 09:39:52 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-08 09:39:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:39:52 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-08 09:39:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:39:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:39:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:39:52 INFO MSTransformManager::open Select data 2026-10-08 09:39:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:39:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-08 09:39:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 19h53m50 40d06m00' successfully parsed for field 0 2026-10-08 09:39:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 22h01m02 40d04m03' successfully parsed for field 2 2026-10-08 09:39:57 INFO phaseshift::::casa Shift phase center 2026-10-08 09:39:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:39:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:39:51.915615 End time: 2026-10-08 09:39:58.520735 2026-10-08 09:39:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:39:59 INFO phaseshift::::casa ########################################## .2026-10-08 09:39:59 INFO phaseshift::::casa ########################################## 2026-10-08 09:39:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:39:59 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'J2000 19h53m50 40d06m00', '3': 'J2000 19h53m50 40d06m00'} ) 2026-10-08 09:39:59 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-08 09:39:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:39:59 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-08 09:39:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:39:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:39:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:39:59 INFO MSTransformManager::open Select data 2026-10-08 09:39:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:40:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-08 09:40:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-10-08 09:40:05 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-10-08 09:40:05 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-08 09:40:05 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-08 09:40:05 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'] ) 2026-10-08 09:40:05 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:40:05 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-08 09:40:05 INFO phaseshift::::casa+ mtlocal.open() 2026-10-08 09:40:05 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-08 09:40:05 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-08 09:40:05 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:40:05 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-10-08 09:40:05 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-08 09:40:05 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:40:05 INFO phaseshift::::casa+ RuntimeError: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-10-08 09:40:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:39:58.706995 End time: 2026-10-08 09:40:05.349426 2026-10-08 09:40:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:40:05 INFO phaseshift::::casa ########################################## .2026-10-08 09:40:05 INFO phaseshift::::casa ########################################## 2026-10-08 09:40:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:40:05 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'J2000 19h53m50 40d06m00'} ) 2026-10-08 09:40:05 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-08 09:40:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:40:05 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-08 09:40:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:40:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:40:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:40:05 INFO MSTransformManager::open Select data 2026-10-08 09:40:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:40:09 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-08 09:40:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-10-08 09:40:09 INFO phaseshift::::casa Shift phase center 2026-10-08 09:40:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:40:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:40:05.455267 End time: 2026-10-08 09:40:10.070587 2026-10-08 09:40:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:40:10 INFO phaseshift::::casa ########################################## .2026-10-08 09:40:10 INFO phaseshift::::casa ########################################## 2026-10-08 09:40:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:40:10 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'} ) 2026-10-08 09:40:10 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-08 09:40:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:40:10 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-08 09:40:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:40:10 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-10-08 09:40:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:40:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:40:10 INFO MSTransformManager::open Select data 2026-10-08 09:40:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:40:10 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-10-08 09:40:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-08 09:40:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 1 2026-10-08 09:40:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 22h01m02 40d04m03' successfully parsed for field 2 2026-10-08 09:40:17 INFO phaseshift::::casa Shift phase center 2026-10-08 09:40:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:40:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:40:10.255062 End time: 2026-10-08 09:40:19.796063 2026-10-08 09:40:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:40:20 INFO phaseshift::::casa ########################################## .2026-10-08 09:40:20 INFO phaseshift::::casa ########################################## 2026-10-08 09:40:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:40:20 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='0,2', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'ICRS 19h53m50 40d06m00', '2': 'ICRS 22h01m02 40d04m03'} ) 2026-10-08 09:40:20 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-08 09:40:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:40:20 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-08 09:40:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:40:20 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-10-08 09:40:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:40:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:40:20 INFO MSTransformManager::open Select data 2026-10-08 09:40:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:40:20 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-10-08 09:40:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-10-08 09:40:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m50 40d06m00' successfully parsed for field 0 2026-10-08 09:40:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 22h01m02 40d04m03' successfully parsed for field 2 2026-10-08 09:40:27 INFO phaseshift::::casa Shift phase center 2026-10-08 09:40:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:40:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:40:19.954472 End time: 2026-10-08 09:40:28.168923 2026-10-08 09:40:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:40:28 INFO phaseshift::::casa ########################################## .2026-10-08 09:40:28 INFO phaseshift::::casa ########################################## 2026-10-08 09:40:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:40:28 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' ) 2026-10-08 09:40:28 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-08 09:40:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:40:28 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-10-08 09:40:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:40:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:40:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:40:28 INFO MSTransformManager::open Select data 2026-10-08 09:40:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:40:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:40:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-08 09:40:33 INFO phaseshift::::casa Shift phase center 2026-10-08 09:40:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:40:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:40:28.292607 End time: 2026-10-08 09:40:34.580907 2026-10-08 09:40:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:40:35 INFO phaseshift::::casa ########################################## ..2026-10-08 09:40:37 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) Requested JD 0 is outside the range of the IERS (Earth axis data) table. 2026-10-08 09:40:37 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) + Calculations will proceed with less precision ..2026-10-08 09:40:37 SEVERE Error in QuantumHolder::fromString with input string "xxh53m50": Illegal input units or format 2026-10-08 09:40:37 SEVERE + in converting quantity from string 2026-10-08 09:40:37 SEVERE Exception Reported: Empty QuantumHolder argument for asQuantumDouble 2026-10-08 09:40:37 SEVERE Exception Reports: Empty QuantumHolder argument for asQuantumDouble 2026-10-08 09:40:37 SEVERE phaseshift::::casa *** Error measures.direction() failed for phasecenter string: BOGUS xxh53m50 40d06m00 when interpreting parameter 'phasecenter': ...2026-10-08 09:41:05 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:41:05 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' ) 2026-10-08 09:41:05 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-08 09:41:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:41:05 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:41:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:41:05 INFO MSTransformManager::parseDataSelParams array selection is 1 2026-10-08 09:41:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:41:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:41:05 INFO MSTransformManager::open Select data 2026-10-08 09:41:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:41:05 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-10-08 09:41:05 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-08 09:41:05 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-08 09:41:05 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'] ) 2026-10-08 09:41:05 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:41:05 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-08 09:41:05 INFO phaseshift::::casa+ mtlocal.open() 2026-10-08 09:41:05 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-08 09:41:05 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-08 09:41:05 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:41:05 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-10-08 09:41:05 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-08 09:41:05 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:41:05 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-10-08 09:41:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:41:05.438153 End time: 2026-10-08 09:41:05.475951 2026-10-08 09:41:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:41:05 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:05 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:41:05 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' ) 2026-10-08 09:41:05 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-08 09:41:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:41:05 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:41:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:41:05 INFO MSTransformManager::parseDataSelParams array selection is 0 2026-10-08 09:41:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:41:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:41:05 INFO MSTransformManager::open Select data 2026-10-08 09:41:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:41:08 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-08 09:41:08 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-08 09:41:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:41:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-08 09:41:10 INFO phaseshift::::casa Shift phase center 2026-10-08 09:41:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:41:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:41:05.476898 End time: 2026-10-08 09:41:11.014785 2026-10-08 09:41:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:41:11 INFO phaseshift::::casa ########################################## .2026-10-08 09:41:12 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:41:12 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' ) 2026-10-08 09:41:12 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-08 09:41:12 INFO MSTransformManager::parseMsSpecParams Data column is MODEL 2026-10-08 09:41:12 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:41:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:41:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:41:12 WARN MSTransformManager::checkDataColumnsToFill MODEL_DATA column requested but not available in input MS 2026-10-08 09:41:12 INFO MSTransformManager::open Select data 2026-10-08 09:41:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:41:12 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). 2026-10-08 09:41:12 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-08 09:41:12 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-08 09:41:12 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'] ) 2026-10-08 09:41:12 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:41:12 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-08 09:41:12 INFO phaseshift::::casa+ mtlocal.open() 2026-10-08 09:41:12 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-08 09:41:12 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-08 09:41:12 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:41:12 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-10-08 09:41:12 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-08 09:41:12 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:41:12 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). 2026-10-08 09:41:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:41:12.132431 End time: 2026-10-08 09:41:12.163958 2026-10-08 09:41:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:41:12 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:12 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:41:12 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' ) 2026-10-08 09:41:12 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-08 09:41:12 INFO MSTransformManager::parseMsSpecParams Data column is DATA 2026-10-08 09:41:12 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:41:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:41:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:41:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:41:12 INFO MSTransformManager::open Select data 2026-10-08 09:41:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:41:19 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-08 09:41:19 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-08 09:41:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:41:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-08 09:41:21 INFO phaseshift::::casa Shift phase center 2026-10-08 09:41:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:41:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:41:12.164944 End time: 2026-10-08 09:41:21.785677 2026-10-08 09:41:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:41:22 INFO phaseshift::::casa ########################################## .2026-10-08 09:41:23 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:23 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:41:23 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' ) 2026-10-08 09:41:23 INFO MSTransformManager::parseMsSpecParams Input file name is Itziar_copy.ms 2026-10-08 09:41:23 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:41:23 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:41:23 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:41:23 INFO MSTransformManager::parseDataSelParams field selection is 2 2026-10-08 09:41:23 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:41:23 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:41:23 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:41:23 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:41:23 INFO MSTransformManager::open Select data 2026-10-08 09:41:23 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:41:23 INFO MSTransformDataHandler::makeSelection 6125 out of 245000 rows are going to be considered due to the selection criteria. 2026-10-08 09:41:26 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:41:26 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 00h00m01 -29d55m40' successfully parsed 2026-10-08 09:41:26 INFO phaseshift::::casa Shift phase center 2026-10-08 09:41:27 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:41:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:41:22.948844 End time: 2026-10-08 09:41:27.022655 2026-10-08 09:41:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:41:27 INFO phaseshift::::casa ########################################## .2026-10-08 09:41:28 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:41:28 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' ) 2026-10-08 09:41:28 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-08 09:41:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:41:28 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:41:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:41:28 INFO MSTransformManager::parseDataSelParams scan intent selection is *FLUX* 2026-10-08 09:41:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:41:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:41:28 INFO MSTransformManager::open Select data 2026-10-08 09:41:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:41:28 INFO MSTransformDataHandler::makeSelection 570 out of 6270 rows are going to be considered due to the selection criteria. 2026-10-08 09:41:32 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-08 09:41:32 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-08 09:41:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:41:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-08 09:41:34 INFO phaseshift::::casa Shift phase center 2026-10-08 09:41:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:41:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:41:28.093132 End time: 2026-10-08 09:41:35.112078 2026-10-08 09:41:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:41:35 INFO phaseshift::::casa ########################################## .2026-10-08 09:41:36 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:41:36 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' ) 2026-10-08 09:41:36 INFO MSTransformManager::parseMsSpecParams Input file name is mms_copy.mms 2026-10-08 09:41:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:41:36 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:41:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:41:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:41:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:41:36 INFO MSTransformManager::open Select data 2026-10-08 09:41:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:41:40 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:41:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 05h30m48 13d31m48' successfully parsed 2026-10-08 09:41:40 INFO phaseshift::::casa Shift phase center 2026-10-08 09:41:41 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:41:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:41:36.287445 End time: 2026-10-08 09:41:41.455444 2026-10-08 09:41:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:41:41 INFO phaseshift::::casa ########################################## .2026-10-08 09:41:42 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:41:42 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' ) 2026-10-08 09:41:42 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-08 09:41:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:41:42 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:41:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:41:42 INFO MSTransformManager::parseDataSelParams observation selection is 1 2026-10-08 09:41:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:41:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:41:42 INFO MSTransformManager::open Select data 2026-10-08 09:41:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:41:42 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-10-08 09:41:42 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-08 09:41:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-08 09:41:42 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'] ) 2026-10-08 09:41:42 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:41:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-10-08 09:41:42 INFO phaseshift::::casa+ mtlocal.open() 2026-10-08 09:41:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-10-08 09:41:42 INFO phaseshift::::casa+ return self._swigobj.open() 2026-10-08 09:41:42 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:41:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-10-08 09:41:42 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-10-08 09:41:42 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:41:42 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-10-08 09:41:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:41:42.453795 End time: 2026-10-08 09:41:42.491473 2026-10-08 09:41:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:41:42 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:42 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:41:42 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' ) 2026-10-08 09:41:43 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-08 09:41:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:41:43 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:41:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:41:43 INFO MSTransformManager::parseDataSelParams observation selection is 0 2026-10-08 09:41:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:41:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:41:43 INFO MSTransformManager::open Select data 2026-10-08 09:41:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:41:47 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-08 09:41:47 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-08 09:41:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:41:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-10-08 09:41:50 INFO phaseshift::::casa Shift phase center 2026-10-08 09:41:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:41:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:41:42.492428 End time: 2026-10-08 09:41:51.219069 2026-10-08 09:41:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:41:51 INFO phaseshift::::casa ########################################## .2026-10-08 09:41:52 INFO phaseshift::::casa ########################################## 2026-10-08 09:41:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:41:52 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-08 09:41:52 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-08 09:41:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:41:52 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:41:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:41:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:41:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:41:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:41:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:41:52 INFO MSTransformManager::open Select data 2026-10-08 09:41:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:41:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:41:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-08 09:41:57 INFO phaseshift::::casa Shift phase center 2026-10-08 09:42:00 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:42:00 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:41:52.410417 End time: 2026-10-08 09:41:59.798957 2026-10-08 09:42:00 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:42:00 INFO phaseshift::::casa ########################################## .2026-10-08 09:42:01 INFO phaseshift::::casa ########################################## 2026-10-08 09:42:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:42:01 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='' ) 2026-10-08 09:42:01 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: phasecenter parameter must be specified 2026-10-08 09:42:01 INFO phaseshift::::casa Traceback (most recent call last): 2026-10-08 09:42:01 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-10-08 09:42:01 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-10-08 09:42:01 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-08 09:42:01 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-13-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 31, in phaseshift 2026-10-08 09:42:01 INFO phaseshift::::casa+ raise ValueError("phasecenter parameter must be specified") 2026-10-08 09:42:01 INFO phaseshift::::casa+ ValueError: phasecenter parameter must be specified 2026-10-08 09:42:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:42:00.786054 End time: 2026-10-08 09:42:00.787191 2026-10-08 09:42:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:42:01 INFO phaseshift::::casa ########################################## 2026-10-08 09:42:01 INFO phaseshift::::casa ########################################## 2026-10-08 09:42:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:42:01 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' ) 2026-10-08 09:42:01 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-08 09:42:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:42:01 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:42:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:42:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:42:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:42:01 INFO MSTransformManager::open Select data 2026-10-08 09:42:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:42:03 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-08 09:42:03 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-08 09:42:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:42:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -08d23m35' successfully parsed 2026-10-08 09:42:06 INFO phaseshift::::casa Shift phase center 2026-10-08 09:42:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:42:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:42:00.788096 End time: 2026-10-08 09:42:07.325990 2026-10-08 09:42:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:42:07 INFO phaseshift::::casa ########################################## .2026-10-08 09:42:08 INFO phaseshift::::casa ########################################## 2026-10-08 09:42:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:42:08 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='00h06m14 -08d23m35' ) 2026-10-08 09:42:09 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-10-08 09:42:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:42:09 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:42:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:42:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:42:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:42:09 INFO MSTransformManager::open Select data 2026-10-08 09:42:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:42:14 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-10-08 09:42:14 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-10-08 09:42:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:42:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center '00h06m14 -08d23m35' successfully parsed 2026-10-08 09:42:17 INFO phaseshift::::casa Shift phase center 2026-10-08 09:42:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:42:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:42:08.484261 End time: 2026-10-08 09:42:17.895818 2026-10-08 09:42:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:42:18 INFO phaseshift::::casa ########################################## .2026-10-08 09:42:19 INFO phaseshift::::casa ########################################## 2026-10-08 09:42:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:42:19 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' ) 2026-10-08 09:42:19 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-08 09:42:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:42:19 INFO MSTransformManager::parseMsSpecParams Output file name is post_phaseshift.ms 2026-10-08 09:42:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:42:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:42:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:42:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:42:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:42:19 INFO MSTransformManager::open Select data 2026-10-08 09:42:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:42:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:42:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-08 09:42:22 INFO phaseshift::::casa Shift phase center 2026-10-08 09:42:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:42:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:42:19.067035 End time: 2026-10-08 09:42:24.139672 2026-10-08 09:42:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:42:24 INFO phaseshift::::casa ########################################## 2026-10-08 09:42:24 INFO tclean::::casa ########################################## 2026-10-08 09:42:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:42:24 INFO tclean::::casa tclean( vis='datacopy.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_pre', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:42:24 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:42:24 INFO SynthesisImagerVi2::selectData MS : datacopy.ms | [Opened in readonly mode] 2026-10-08 09:42:24 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-10-08 09:42:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-10-08 09:42:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-10-08 09:42:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:42:24 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-10-08 09:42:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_pre] with ftmachine : wprojectft 2026-10-08 09:42:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.4191 GB. Available mem.: 48.06 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:42:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:42:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_pre] : hogbom 2026-10-08 09:42:24 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:42:25 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-10-08 09:42:25 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-10-08 09:42:25 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-10-08 09:42:25 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-10-08 09:42:40 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 2026-10-08 09:42:40 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 0%....10....20....30....40....50....60....70....80....90....100% 2026-10-08 09:43:25 INFO SIImageStore::calcSensitivity [im2_pre] Theoretical sensitivity (Jy/bm):0.00204403 2026-10-08 09:43:25 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.124575 2026-10-08 09:43:25 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-10-08 09:43:25 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:43:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:43:30 INFO task_tclean::SDAlgorithmBase::restore [im2_pre] : Restoring model image. 2026-10-08 09:43:30 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2353) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-10-08 09:43:30 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-10-08 09:43:30 INFO tclean::::casa Searching for images with prefix 'im2_pre'... Found these, writing history into them: ['im2_pre.pb', 'im2_pre.psf', 'im2_pre.residual', 'im2_pre.sumwt', 'im2_pre.image', 'im2_pre.model'] 2026-10-08 09:43:32 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:42:24.249640 End time: 2026-10-08 09:43:31.744946 2026-10-08 09:43:32 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:43:32 INFO tclean::::casa ########################################## 2026-10-08 09:43:32 INFO tclean::::casa ########################################## 2026-10-08 09:43:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:43:32 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift', imsize=2048, cell='5arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:43:32 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:43:32 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-10-08 09:43:32 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-10-08 09:43:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-10-08 09:43:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-10-08 09:43:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:43:32 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-10-08 09:43:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift] with ftmachine : wprojectft 2026-10-08 09:43:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.4191 GB. Available mem.: 48.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:43:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:43:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift] : hogbom 2026-10-08 09:43:32 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:43:33 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-10-08 09:43:33 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-10-08 09:43:33 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-10-08 09:43:33 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-10-08 09:43:47 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 2026-10-08 09:43:47 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 2026-10-08 09:43:50 INFO SIImageStore::calcSensitivity [im2_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00204403 2026-10-08 09:43:50 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.116793 2026-10-08 09:43:50 INFO SIImageStore::printBeamSet Beam : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-10-08 09:43:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:43:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:43:55 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift] : Restoring model image. 2026-10-08 09:43:55 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2353) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-10-08 09:43:56 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-10-08 09:43:56 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift'... Found these, writing history into them: ['im2_post_phaseshift.pb', 'im2_post_phaseshift.model', 'im2_post_phaseshift.residual', 'im2_post_phaseshift.psf', 'im2_post_phaseshift.image', 'im2_post_phaseshift.sumwt'] 2026-10-08 09:43:58 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:43:31.787974 End time: 2026-10-08 09:43:57.499514 2026-10-08 09:43:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:43:58 INFO tclean::::casa ########################################## 2026-10-08 09:43:58 INFO tclean::::casa ########################################## 2026-10-08 09:43:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:43:58 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift_tclean_phasecenter', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:43:58 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:43:58 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-10-08 09:43:58 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-10-08 09:43:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-10-08 09:43:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-10-08 09:43:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:43:58 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-10-08 09:43:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift_tclean_phasecenter] with ftmachine : wprojectft 2026-10-08 09:43:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.4191 GB. Available mem.: 48.06 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:43:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:43:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift_tclean_phasecenter] : hogbom 2026-10-08 09:43:58 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:44:01 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-10-08 09:44:01 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-10-08 09:44:01 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-10-08 09:44:01 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-10-08 09:44:16 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-10-08 09:44:16 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 2026-10-08 09:44:19 INFO SIImageStore::calcSensitivity [im2_post_phaseshift_tclean_phasecenter] Theoretical sensitivity (Jy/bm):0.00204403 2026-10-08 09:44:19 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.116413 2026-10-08 09:44:19 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-10-08 09:44:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:44:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:44:23 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift_tclean_phasecenter] : Restoring model image. 2026-10-08 09:44:23 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2353) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-10-08 09:44:26 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-10-08 09:44:26 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift_tclean_phasecenter'... Found these, writing history into them: ['im2_post_phaseshift_tclean_phasecenter.pb', 'im2_post_phaseshift_tclean_phasecenter.residual', 'im2_post_phaseshift_tclean_phasecenter.image', 'im2_post_phaseshift_tclean_phasecenter.psf', 'im2_post_phaseshift_tclean_phasecenter.model', 'im2_post_phaseshift_tclean_phasecenter.sumwt'] 2026-10-08 09:44:27 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:43:57.540971 End time: 2026-10-08 09:44:26.978557 2026-10-08 09:44:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:44:27 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} .2026-10-08 09:44:28 INFO phaseshift::::casa ########################################## 2026-10-08 09:44:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:44:28 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' ) 2026-10-08 09:44:28 INFO MSTransformManager::parseMsSpecParams Input file name is ngc_copy.ms 2026-10-08 09:44:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:44:28 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:44:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:44:28 INFO MSTransformManager::parseDataSelParams spw selection is 1 2026-10-08 09:44:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:44:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:44:28 INFO MSTransformManager::initDataSelectionParams Selected SPWs Ids are Axis Lengths: [1, 4] (NB: Matrix in Row/Column order) 2026-10-08 09:44:28 INFO MSTransformManager::initDataSelectionParams+ [1, 0, 4, 1] 2026-10-08 09:44:28 INFO MSTransformManager::open Select data 2026-10-08 09:44:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:44:28 INFO MSTransformDataHandler::makeSelection 13338 out of 26676 rows are going to be considered due to the selection criteria. 2026-10-08 09:44:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:44:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 23h11m54 61d10m54' successfully parsed 2026-10-08 09:44:32 INFO phaseshift::::casa Shift phase center 2026-10-08 09:44:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:44:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:44:28.204302 End time: 2026-10-08 09:44:32.809951 2026-10-08 09:44:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:44:33 INFO phaseshift::::casa ########################################## .2026-10-08 09:44:34 INFO phaseshift::::casa ########################################## 2026-10-08 09:44:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:44:34 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-08 09:44:34 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-10-08 09:44:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:44:34 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-10-08 09:44:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:44:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:44:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:44:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:44:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:44:34 INFO MSTransformManager::open Select data 2026-10-08 09:44:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:44:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:44:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-08 09:44:38 INFO phaseshift::::casa Shift phase center 2026-10-08 09:44:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:44:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:44:33.863140 End time: 2026-10-08 09:44:39.374647 2026-10-08 09:44:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:44:39 INFO phaseshift::::casa ########################################## .2026-10-08 09:44:40 INFO phaseshift::::casa ########################################## 2026-10-08 09:44:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:44:40 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' ) 2026-10-08 09:44:40 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:44:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:44:40 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:44:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:44:40 INFO MSTransformManager::parseDataSelParams field selection is 0 2026-10-08 09:44:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:44:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:44:40 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:44:40 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:44:40 INFO MSTransformManager::open Select data 2026-10-08 09:44:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:44:40 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-08 09:44:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:44:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-10-08 09:44:44 INFO phaseshift::::casa Shift phase center 2026-10-08 09:44:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:44:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:44:40.267810 End time: 2026-10-08 09:44:45.937534 2026-10-08 09:44:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:44:46 INFO phaseshift::::casa ########################################## 2026-10-08 09:44:46 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-08 09:44:46 INFO tclean::::casa ########################################## 2026-10-08 09:44:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:44:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:44:46 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:44:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:44:46 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-08 09:44:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:44:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:44:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:44:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-10-08 09:44:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:44:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.06 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:44:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:44:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:44:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:44:48 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-08 09:44:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029617 2026-10-08 09:44:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-08 09:44:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:44:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:44:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:44:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:44:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:44:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:44:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:44:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-10-08 09:44:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:44:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:44:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:44:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:44:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:44:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-10-08 09:44:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-10-08 09:44:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:44:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:44:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-10-08 09:44:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:44:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-10-08 09:44:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-10-08 09:44:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:44:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:44:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-10-08 09:44:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:44:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-10-08 09:44:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-10-08 09:44:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:44:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:45:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-10-08 09:45:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:45:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:45:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:45:01 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-08 09:45:01 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:45:03 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:44:46.220805 End time: 2026-10-08 09:45:03.031956 2026-10-08 09:45:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:45:03 INFO tclean::::casa ########################################## 2026-10-08 09:45:03 INFO imstat::::casa ########################################## 2026-10-08 09:45:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:45:03 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 ) 2026-10-08 09:45:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:45:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:45:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:45:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:45:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:45:03 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz to 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz) 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-10-08 09:45:03 INFO imstat:::: Values --- 2026-10-08 09:45:03 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-10-08 09:45:03 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:45:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:45:03 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-10-08 09:45:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-10-08 09:45:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-10-08 09:45:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-10-08 09:45:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-10-08 09:45:03 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-10-08 09:45:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-10-08 09:45:03 INFO imstat:::: Statistics --- 2026-10-08 09:45:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-10-08 09:45:03 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-10-08 09:45:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-10-08 09:45:03 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-10-08 09:45:03 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-10-08 09:45:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-10-08 09:45:03 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-10-08 09:45:03 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-10-08 09:45:03 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:45:03 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.059610e+02 9.246232e-03 1.521305e-01 1.518505e-01 -1.228298e-04 4.999997e+00 2026-10-08 09:45:03 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:45:03.060439 End time: 2026-10-08 09:45:03.110218 2026-10-08 09:45:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:45:03 INFO imstat::::casa ########################################## 2026-10-08 09:45:03 INFO phaseshift::::casa ########################################## 2026-10-08 09:45:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:45:03 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='fake', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-10-08 09:45:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:45:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:45:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:45:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:45:03 INFO MSTransformManager::parseDataSelParams field selection is fake 2026-10-08 09:45:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:45:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:45:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:45:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:45:03 INFO MSTransformManager::open Select data 2026-10-08 09:45:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:45:03 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-08 09:45:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:45:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-10-08 09:45:07 INFO phaseshift::::casa Shift phase center 2026-10-08 09:45:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:45:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:45:03.124391 End time: 2026-10-08 09:45:08.186256 2026-10-08 09:45:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:45:08 INFO phaseshift::::casa ########################################## 2026-10-08 09:45:08 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-10-08 09:45:08 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-08 09:45:08 INFO tclean::::casa ########################################## 2026-10-08 09:45:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:45:08 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:45:08 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:45:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:45:08 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-08 09:45:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:45:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:45:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:45:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-10-08 09:45:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:45:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:45:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:45:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:45:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:45:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-08 09:45:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027405 2026-10-08 09:45:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-08 09:45:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:45:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:45:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:45:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:45:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:45:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:45:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:45:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-10-08 09:45:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:45:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:45:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:45:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:45:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:45:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-10-08 09:45:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-10-08 09:45:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:45:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:45:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-10-08 09:45:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:45:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-10-08 09:45:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-10-08 09:45:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:45:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:45:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-10-08 09:45:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:45:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-10-08 09:45:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-10-08 09:45:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:45:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:45:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-10-08 09:45:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:45:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:45:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:45:28 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-10-08 09:45:28 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:45:30 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:45:08.286821 End time: 2026-10-08 09:45:30.417994 2026-10-08 09:45:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:45:30 INFO tclean::::casa ########################################## 2026-10-08 09:45:30 INFO imstat::::casa ########################################## 2026-10-08 09:45:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:45:30 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:45:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:45:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:45:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:45:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:45:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:45:30 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) 2026-10-08 09:45:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:45:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:45:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:45:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:45:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-10-08 09:45:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-10-08 09:45:30 INFO imstat:::: Values --- 2026-10-08 09:45:30 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-10-08 09:45:30 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:45:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:45:30 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-10-08 09:45:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-10-08 09:45:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-10-08 09:45:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-10-08 09:45:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-10-08 09:45:30 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-10-08 09:45:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-10-08 09:45:30 INFO imstat:::: Statistics --- 2026-10-08 09:45:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-10-08 09:45:30 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-10-08 09:45:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-10-08 09:45:30 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-10-08 09:45:30 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-10-08 09:45:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-10-08 09:45:30 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-10-08 09:45:30 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-10-08 09:45:30 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-10-08 09:45:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:45:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:45:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:45:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:45:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:45:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:45:30 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 2026-10-08 09:45:30 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:45:30.423363 End time: 2026-10-08 09:45:30.466548 2026-10-08 09:45:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:45:30 INFO imstat::::casa ########################################## 2026-10-08 09:45:30 INFO phaseshift::::casa ########################################## 2026-10-08 09:45:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:45:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-10-08 09:45:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:45:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:45:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:45:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:45:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:45:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:45:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:45:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:45:31 INFO MSTransformManager::open Select data 2026-10-08 09:45:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:45:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:45:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-10-08 09:45:35 INFO phaseshift::::casa Shift phase center 2026-10-08 09:45:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:45:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:45:30.486814 End time: 2026-10-08 09:45:35.873774 2026-10-08 09:45:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:45:36 INFO phaseshift::::casa ########################################## 2026-10-08 09:45:36 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-08 09:45:36 INFO tclean::::casa ########################################## 2026-10-08 09:45:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:45:36 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:45:36 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:45:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:45:36 INFO SynthesisImagerVi2::selectData NRows selected : 7020 2026-10-08 09:45:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:45:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:45:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:45:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:45:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:45:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:45:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:45:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:45:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:45:37 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00843949 2026-10-08 09:45:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024665 2026-10-08 09:45:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-10-08 09:45:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:45:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:45:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:45:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:45:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:45:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:45:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6069034934043884, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:45:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.606903, CycleNiter=20, Gain=0.3 2026-10-08 09:45:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:45:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:45:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:45:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:45:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07140088081359863, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:45:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0714009, CycleNiter=14, Gain=0.3 2026-10-08 09:45:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-10-08 09:45:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:45:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:45:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-10-08 09:45:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00840018317103386, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:45:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00840018, CycleNiter=8, Gain=0.3 2026-10-08 09:45:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-10-08 09:45:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:45:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:45:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814189, over full image : 0.00814189 2026-10-08 09:45:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009882674785330892, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:45:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000988267, CycleNiter=2, Gain=0.3 2026-10-08 09:45:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814189->0.00279267, Reached cycleniter. 2026-10-08 09:45:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:45:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:45:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0027928, over full image : 0.0027928 2026-10-08 09:45:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:45:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:45:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:45:47 INFO SIImageStore::restore Beam for chan : 0 : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-10-08 09:45:48 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:45:49 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:45:36.121120 End time: 2026-10-08 09:45:48.617631 2026-10-08 09:45:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:45:49 INFO tclean::::casa ########################################## 2026-10-08 09:45:49 INFO imstat::::casa ########################################## 2026-10-08 09:45:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:45:49 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 ) 2026-10-08 09:45:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:45:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:45:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:45:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:45:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:45:49 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) 2026-10-08 09:45:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:45:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:45:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:45:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:45:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 999981604.64Hz 2026-10-08 09:45:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 999981604.64Hz 2026-10-08 09:45:49 INFO imstat:::: Values --- 2026-10-08 09:45:49 INFO imstat:::: -- flux density [flux]: 4.99444 Jy 2026-10-08 09:45:49 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:45:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:45:49 INFO imstat:::: -- minimum value [min]: -9.70533e-05 Jy/beam 2026-10-08 09:45:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-10-08 09:45:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [158, 70, 0, 0] 2026-10-08 09:45:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981604.64Hz 2026-10-08 09:45:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:29.120, +39.58.47.882, I, 999981604.64Hz 2026-10-08 09:45:49 INFO imstat:::: -- Sum of pixel values [sum]: 610.203 Jy/beam 2026-10-08 09:45:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1527.26 Jy/beam.Jy/beam 2026-10-08 09:45:49 INFO imstat:::: Statistics --- 2026-10-08 09:45:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00931096 Jy/beam 2026-10-08 09:45:49 INFO imstat:::: -- Variance of the pixel values : 0.0232178 Jy/beam 2026-10-08 09:45:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152374 Jy/beam 2026-10-08 09:45:49 INFO imstat:::: -- Root mean square [rms]: 0.152657 Jy/beam 2026-10-08 09:45:49 INFO imstat:::: -- Median of the pixel values [median]: -1.85752e-05 Jy/beam 2026-10-08 09:45:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.83975e-05 Jy/beam 2026-10-08 09:45:49 INFO imstat:::: -- IQR [quartile]: 3.74524e-05 Jy/beam 2026-10-08 09:45:49 INFO imstat:::: -- First quartile [q1]: -3.53147e-05 Jy/beam 2026-10-08 09:45:49 INFO imstat:::: -- Third quartile [q3]: 2.13765e-06 Jy/beam 2026-10-08 09:45:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:45:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:45:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:45:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:45:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:45:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:45:49 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 2026-10-08 09:45:49 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:45:48.621413 End time: 2026-10-08 09:45:48.653250 2026-10-08 09:45:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:45:49 INFO imstat::::casa ########################################## 2026-10-08 09:45:49 INFO phaseshift::::casa ########################################## 2026-10-08 09:45:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:45:49 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' ) 2026-10-08 09:45:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:45:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:45:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:45:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:45:49 INFO MSTransformManager::parseDataSelParams field selection is 1 2026-10-08 09:45:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:45:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:45:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:45:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:45:49 INFO MSTransformManager::open Select data 2026-10-08 09:45:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:45:49 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-08 09:45:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:45:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-10-08 09:45:53 INFO phaseshift::::casa Shift phase center 2026-10-08 09:45:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:45:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:45:48.671327 End time: 2026-10-08 09:45:54.607662 2026-10-08 09:45:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:45:55 INFO phaseshift::::casa ########################################## 2026-10-08 09:45:55 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-08 09:45:55 INFO tclean::::casa ########################################## 2026-10-08 09:45:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:45:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:45:55 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:45:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:45:55 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-08 09:45:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:45:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:45:55 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:45:55 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-10-08 09:45:55 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:45:55 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:45:55 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:45:55 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:45:55 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:45:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-08 09:45:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.014872 2026-10-08 09:45:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-08 09:45:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:45:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:45:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-10-08 09:45:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:45:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:45:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-10-08 09:45:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:45:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-10-08 09:46:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-10-08 09:46:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:46:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:46:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-10-08 09:46:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:46:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:46:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:46:02 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-08 09:46:03 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:46:04 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:45:54.871897 End time: 2026-10-08 09:46:04.437752 2026-10-08 09:46:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:46:04 INFO tclean::::casa ########################################## 2026-10-08 09:46:04 INFO imstat::::casa ########################################## 2026-10-08 09:46:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:46:04 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 ) 2026-10-08 09:46:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:46:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:46:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:46:04 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:46:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:46:04 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) 2026-10-08 09:46:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:46:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:46:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:46:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:46:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-10-08 09:46:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-10-08 09:46:04 INFO imstat:::: Values --- 2026-10-08 09:46:04 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-10-08 09:46:04 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:46:04 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-10-08 09:46:04 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-10-08 09:46:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-10-08 09:46:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-10-08 09:46:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-10-08 09:46:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-10-08 09:46:04 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-10-08 09:46:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-10-08 09:46:04 INFO imstat:::: Statistics --- 2026-10-08 09:46:04 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-10-08 09:46:04 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-10-08 09:46:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-10-08 09:46:04 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-10-08 09:46:04 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-10-08 09:46:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-10-08 09:46:04 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-10-08 09:46:04 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-10-08 09:46:04 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-10-08 09:46:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:46:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:46:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:46:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:46:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:46:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:46:04 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 2026-10-08 09:46:04 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:46:04.442513 End time: 2026-10-08 09:46:04.478802 2026-10-08 09:46:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:46:04 INFO imstat::::casa ########################################## 2026-10-08 09:46:04 INFO phaseshift::::casa ########################################## 2026-10-08 09:46:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:46:04 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' ) 2026-10-08 09:46:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:46:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:46:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:46:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:46:05 INFO MSTransformManager::parseDataSelParams field selection is pretend 2026-10-08 09:46:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:46:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:46:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:46:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:46:05 INFO MSTransformManager::open Select data 2026-10-08 09:46:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:46:05 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-10-08 09:46:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:46:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-10-08 09:46:08 INFO phaseshift::::casa Shift phase center 2026-10-08 09:46:09 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:46:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:46:04.497694 End time: 2026-10-08 09:46:08.677379 2026-10-08 09:46:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:46:09 INFO phaseshift::::casa ########################################## 2026-10-08 09:46:09 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-10-08 09:46:09 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-10-08 09:46:09 INFO tclean::::casa ########################################## 2026-10-08 09:46:09 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:46:09 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:46:09 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:46:09 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:46:09 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-10-08 09:46:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:46:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:46:09 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:46:09 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-10-08 09:46:09 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:46:09 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:46:09 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:46:09 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:46:09 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:46:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-10-08 09:46:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025269 2026-10-08 09:46:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-08 09:46:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:46:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:46:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-10-08 09:46:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:46:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:46:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-10-08 09:46:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:46:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-10-08 09:46:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-10-08 09:46:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:46:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:46:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-10-08 09:46:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:46:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:46:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:46:18 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-10-08 09:46:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:46:20 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:46:08.776060 End time: 2026-10-08 09:46:20.072409 2026-10-08 09:46:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:46:20 INFO tclean::::casa ########################################## 2026-10-08 09:46:20 INFO imstat::::casa ########################################## 2026-10-08 09:46:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:46:20 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:46:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:46:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:46:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:46:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:46:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:46:20 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz to 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz) 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-10-08 09:46:20 INFO imstat:::: Values --- 2026-10-08 09:46:20 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-10-08 09:46:20 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:46:20 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-10-08 09:46:20 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-10-08 09:46:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-10-08 09:46:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-10-08 09:46:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-10-08 09:46:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-10-08 09:46:20 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-10-08 09:46:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-10-08 09:46:20 INFO imstat:::: Statistics --- 2026-10-08 09:46:20 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-10-08 09:46:20 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-10-08 09:46:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-10-08 09:46:20 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-10-08 09:46:20 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-10-08 09:46:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-10-08 09:46:20 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-10-08 09:46:20 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-10-08 09:46:20 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:46:20 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 -2.993095e+01 -4.567100e-04 5.968411e-02 5.968282e-02 -1.468002e-01 2.858716e-01 2026-10-08 09:46:20 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:46:20.077533 End time: 2026-10-08 09:46:20.121014 2026-10-08 09:46:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:46:20 INFO imstat::::casa ########################################## .2026-10-08 09:46:21 INFO tclean::::casa ########################################## 2026-10-08 09:46:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:46:21 INFO tclean::::casa tclean( vis='sim_data.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_orig', imsize=2048, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:46:21 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:46:21 INFO SynthesisImagerVi2::selectData MS : sim_data.ms | [Opened in readonly mode] 2026-10-08 09:46:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:46:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-10-08 09:46:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-10-08 09:46:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:46:21 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [9.99981e+08] at [0] with increment [1e+08] 2026-10-08 09:46:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_orig] with ftmachine : wprojectft 2026-10-08 09:46:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.4191 GB. Available mem.: 48.05 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:46:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:46:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_orig] : hogbom 2026-10-08 09:46:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:46:22 INFO task_tclean::WPConvFunc::findConvFunction W projection using 128 planes 2026-10-08 09:46:22 INFO task_tclean::WPConvFunc::findConvFunction Using maximum possible W = 6445.78 (wavelengths) 2026-10-08 09:46:22 INFO task_tclean::WPConvFunc::findConvFunction Typical wavelength = 0.299799 (m) 2026-10-08 09:46:22 INFO task_tclean::WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.399639 wavelengths per pixel 2026-10-08 09:46:38 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 2026-10-08 09:46:38 INFO task_tclean::WPConvFunc::findConvFunction Memory used in gridding function = 14 MB from maximum 64265 MB 2026-10-08 09:46:41 INFO task_tclean::SIImageStore::calcSensitivity [im_orig] Theoretical sensitivity (Jy/bm):0.00889437 2026-10-08 09:46:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.11489 2026-10-08 09:46:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-10-08 09:46:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:46:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:46:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 4.94899 2026-10-08 09:46:46 INFO SynthesisDeconvolver::setupMask [im_orig] Initializing new mask to 1.0 for the full image 2026-10-08 09:46:46 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 % ] 2026-10-08 09:46:46 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 4.94899, over full image : 4.94899 2026-10-08 09:46:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.5971387624740601, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:46:46 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.597139, CycleNiter=20, Gain=0.3 2026-10-08 09:46:48 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=0->4.6028, peakres=4.94899->0.435227, Reached cyclethreshold. 2026-10-08 09:46:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 7 iterations. 2026-10-08 09:46:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:46:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.45574, over full image : 0.45574 2026-10-08 09:46:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 13, 'cyclethreshold': 0.05498892068862915, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:46:53 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.0549889, CycleNiter=13, Gain=0.3 2026-10-08 09:46:54 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=4.6028->5.02619, peakres=0.45574->0.0435268, Reached cyclethreshold. 2026-10-08 09:46:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 14 iterations. 2026-10-08 09:46:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:46:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0416506, over full image : 0.0416506 2026-10-08 09:46:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 6, 'cyclethreshold': 0.005025508347898722, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:46:58 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.00502551, CycleNiter=6, Gain=0.3 2026-10-08 09:46:59 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->6 [6], model=5.02619->5.04001, peakres=0.0416506->0.0226678, Reached cycleniter. 2026-10-08 09:46:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:46:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:47:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.022671, over full image : 0.022671 2026-10-08 09:47:03 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:47:03 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:47:03 INFO SDAlgorithmBase::restore [im_orig] : Restoring model image. 2026-10-08 09:47:04 INFO SIImageStore::restore Beam for chan : 0 : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-10-08 09:47:05 INFO tclean::::casa Searching for images with prefix 'im_orig'... Found these, writing history into them: ['im_orig.residual', 'im_orig.sumwt', 'im_orig.image', 'im_orig.psf', 'im_orig.model', 'im_orig.mask', 'im_orig.pb'] 2026-10-08 09:47:06 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:46:20.913374 End time: 2026-10-08 09:47:06.328944 2026-10-08 09:47:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:47:06 INFO tclean::::casa ########################################## 2026-10-08 09:47:06 INFO imstat::::casa ########################################## 2026-10-08 09:47:06 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:47:06 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 ) 2026-10-08 09:47:06 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:47:06 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:47:06 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:47:06 INFO imstat::image::statistics Determining stats for image im_orig.image 2026-10-08 09:47:06 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:47:06 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) 2026-10-08 09:47:06 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:47:06 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:47:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:47:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [2047, 2047, 0, 0] 2026-10-08 09:47:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 20:11:05.220, +38.21.11.967, I, 999980841.3Hz 2026-10-08 09:47:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:47:03.322, +42.54.02.996, I, 999980841.3Hz 2026-10-08 09:47:07 INFO imstat:::: Values --- 2026-10-08 09:47:07 INFO imstat:::: -- flux density [flux]: 5.2713 Jy 2026-10-08 09:47:07 INFO imstat:::: -- number of points [npts]: 4.1943e+06 2026-10-08 09:47:07 INFO imstat:::: -- maximum value [max]: 4.97713 Jy/beam 2026-10-08 09:47:07 INFO imstat:::: -- minimum value [min]: -0.022671 Jy/beam 2026-10-08 09:47:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [1509, 773, 0, 0] 2026-10-08 09:47:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [1708, 965, 0, 0] 2026-10-08 09:47:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.302, +40.06.02.372, I, 999980841.3Hz 2026-10-08 09:47:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:51:28.525, +40.31.07.260, I, 999980841.3Hz 2026-10-08 09:47:07 INFO imstat:::: -- Sum of pixel values [sum]: 641.87 Jy/beam 2026-10-08 09:47:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1619.58 Jy/beam.Jy/beam 2026-10-08 09:47:07 INFO imstat:::: Statistics --- 2026-10-08 09:47:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.000153034 Jy/beam 2026-10-08 09:47:07 INFO imstat:::: -- Variance of the pixel values : 0.000386116 Jy/beam 2026-10-08 09:47:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0196498 Jy/beam 2026-10-08 09:47:07 INFO imstat:::: -- Root mean square [rms]: 0.0196504 Jy/beam 2026-10-08 09:47:07 INFO imstat:::: -- Median of the pixel values [median]: 4.62212e-06 Jy/beam 2026-10-08 09:47:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.003161 Jy/beam 2026-10-08 09:47:07 INFO imstat:::: -- IQR [quartile]: 0.00632194 Jy/beam 2026-10-08 09:47:07 INFO imstat:::: -- First quartile [q1]: -0.00315522 Jy/beam 2026-10-08 09:47:07 INFO imstat:::: -- Third quartile [q3]: 0.00316673 Jy/beam 2026-10-08 09:47:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:47:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:47:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:47:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:47:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:47:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:47:07 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 2026-10-08 09:47:07 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:47:06.333813 End time: 2026-10-08 09:47:06.691128 2026-10-08 09:47:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:47:07 INFO imstat::::casa ########################################## 2026-10-08 09:47:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:47:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:47:07 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) 2026-10-08 09:47:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:47:07 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:47:07 2026****** 2026-10-08 09:47:07 INFO ImageFitter::fit+ 2026-10-08 09:47:07 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:47:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_orig.image 2026-10-08 09:47:07 INFO ImageFitter::fit+ --- region: 2026-10-08 09:47:07 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:47:07 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:47:07 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:47:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:47:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:47:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:47:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:47:07 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) 2026-10-08 09:47:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29832 Jy 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00459192 Jy 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85855 Jy 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00458731 Jy 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ Fit on im_orig.image component 0 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.9885 +/- 0.0032 s (0.0367 arcsec along great circle) 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.0594 +/- 0.0281 arcsec 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- ra: 1509.4535 +/- 0.0046 pixels 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- dec: 772.7181 +/- 0.0035 pixels 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.4778 +/- 0.0014 arcmin 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.2915 +/- 0.0011 arcmin 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.42 +/- 0.26 deg 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.70 arcsec 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.54 arcsec 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- position angle: -89.60 deg 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ Component is a point source 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ An upper limit on its size cannot be determined 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.0049 +/- 0.0079 Jy 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- Peak: 5.0102 +/- 0.0046 Jy/beam 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:47:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9808 MHz (29.97982 cm) 2026-10-08 09:47:07 INFO phaseshift::::casa ########################################## 2026-10-08 09:47:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:47:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-10-08 09:47:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:47:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:47:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:47:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:47:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:47:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:47:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:47:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:47:07 INFO MSTransformManager::open Select data 2026-10-08 09:47:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:47:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:47:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-10-08 09:47:16 INFO phaseshift::::casa Shift phase center 2026-10-08 09:47:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:47:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:47:06.787785 End time: 2026-10-08 09:47:16.586273 2026-10-08 09:47:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:47:17 INFO phaseshift::::casa ########################################## 2026-10-08 09:47:17 INFO tclean::::casa ########################################## 2026-10-08 09:47:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:47:17 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:47:17 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:47:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:47:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:47:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:47:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:47:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:47:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:47:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:47:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:47:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:47:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:47:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:47:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:47:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02745 2026-10-08 09:47:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:47:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:47:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:47:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:47:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:47:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:47:22 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:47:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:47:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:47:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:47:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:47:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:47:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:47:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:47:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:47:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:47:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:47:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:47:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:47:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:47:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:47:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:47:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:47:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:47:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:47:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:47:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:47:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:47:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:47:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:47:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:47:34 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:47:34 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:47:34 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:47:35 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:47:35 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:47:40 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:47:16.787587 End time: 2026-10-08 09:47:39.714058 2026-10-08 09:47:40 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:47:40 INFO tclean::::casa ########################################## 2026-10-08 09:47:40 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:47:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:47:40 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:47:40 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:47:40 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:47:40 2026****** 2026-10-08 09:47:40 INFO ImageFitter::fit+ 2026-10-08 09:47:40 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:47:40 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:47:40 INFO ImageFitter::fit+ --- region: 2026-10-08 09:47:40 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:47:40 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:47:40 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:47:40 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:47:40 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:47:40 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:47:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:47:40 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 09:47:40 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:47:40 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:47:40 INFO imstat::::casa ########################################## 2026-10-08 09:47:40 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:47:40 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:47:40 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:47:40 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:47:40 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:47:40 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:47:40 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:47:40 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:47:40 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:47:40 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:47:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:47:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:47:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:47:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:47:40 INFO imstat:::: Values --- 2026-10-08 09:47:40 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:47:40 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:47:40 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:47:40 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-08 09:47:40 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:47:40 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:47:40 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:47:40 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 09:47:40 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:47:40 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:47:40 INFO imstat:::: Statistics --- 2026-10-08 09:47:40 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:47:40 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:47:40 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:47:40 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:47:40 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-08 09:47:40 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-08 09:47:40 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-08 09:47:40 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-08 09:47:40 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-08 09:47:40 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:47:40 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:47:40 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:47:40 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:47:40 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:47:40 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:47:40 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 2026-10-08 09:47:40 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:47:39.789404 End time: 2026-10-08 09:47:39.816157 2026-10-08 09:47:40 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:47:40 INFO imstat::::casa ########################################## 2026-10-08 09:47:40 INFO phaseshift::::casa ########################################## 2026-10-08 09:47:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:47:40 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 02:40:24.0000' ) 2026-10-08 09:47:40 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:47:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:47:40 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:47:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:47:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:47:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:47:40 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:47:40 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:47:40 INFO MSTransformManager::open Select data 2026-10-08 09:47:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:47:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-08 09:47:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 02:40:24.0000' successfully parsed 2026-10-08 09:47:47 INFO phaseshift::::casa Shift phase center 2026-10-08 09:47:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:47:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:47:39.833246 End time: 2026-10-08 09:47:48.183020 2026-10-08 09:47:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:47:48 INFO phaseshift::::casa ########################################## 2026-10-08 09:47:48 INFO tclean::::casa ########################################## 2026-10-08 09:47:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:47:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:47:48 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:47:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:47:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:47:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:47:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:47:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:47:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:47:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:47:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:47:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:47:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:47:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:47:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:47:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023573 2026-10-08 09:47:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:47:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:47:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:47:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:47:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:47:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:47:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:47:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:47:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:47:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:47:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:47:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:47:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:47:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:47:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:47:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:47:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:47:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:47:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:47:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:47:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:47:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:47:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:47:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:48:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:48:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:48:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:48:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:48:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:48:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:48:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:48:03 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:48:03 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:48:03 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:48:05 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:48:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:48:07 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:47:48.238904 End time: 2026-10-08 09:48:07.494322 2026-10-08 09:48:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:48:07 INFO tclean::::casa ########################################## 2026-10-08 09:48:08 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:48:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:48:08 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) 2026-10-08 09:48:08 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:48:08 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:48:08 2026****** 2026-10-08 09:48:08 INFO ImageFitter::fit+ 2026-10-08 09:48:08 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:48:08 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:48:08 INFO ImageFitter::fit+ --- region: 2026-10-08 09:48:08 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:48:08 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:48:08 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:48:08 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:48:08 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:48:08 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:48:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:48:08 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) 2026-10-08 09:48:08 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:48:08 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:48:08 INFO imstat::::casa ########################################## 2026-10-08 09:48:08 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:48:08 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 ) 2026-10-08 09:48:08 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:48:08 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:48:08 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:48:08 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:48:08 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:48:08 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) 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:48:08 INFO imstat:::: Values --- 2026-10-08 09:48:08 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:48:08 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:48:08 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:48:08 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-08 09:48:08 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:48:08 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:48:08 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:48:08 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 09:48:08 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:48:08 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:48:08 INFO imstat:::: Statistics --- 2026-10-08 09:48:08 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:48:08 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:48:08 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:48:08 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:48:08 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-08 09:48:08 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-08 09:48:08 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-08 09:48:08 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-08 09:48:08 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:48:08 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-08 09:48:08 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:48:07.567655 End time: 2026-10-08 09:48:07.605342 2026-10-08 09:48:08 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:48:08 INFO imstat::::casa ########################################## 2026-10-08 09:48:08 INFO phaseshift::::casa ########################################## 2026-10-08 09:48:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:48:08 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.100000000deg' ) 2026-10-08 09:48:08 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:48:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:48:08 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:48:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:48:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:48:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:48:08 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:48:08 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:48:08 INFO MSTransformManager::open Select data 2026-10-08 09:48:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:48:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:48:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.100000000deg' successfully parsed 2026-10-08 09:48:12 INFO phaseshift::::casa Shift phase center 2026-10-08 09:48:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:48:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:48:07.620933 End time: 2026-10-08 09:48:13.399787 2026-10-08 09:48:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:48:13 INFO phaseshift::::casa ########################################## 2026-10-08 09:48:13 INFO tclean::::casa ########################################## 2026-10-08 09:48:13 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:48:13 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:48:13 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:48:13 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:48:13 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:48:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:48:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:48:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:48:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:48:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:48:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:48:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:48:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:48:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:48:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:48:16 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023549 2026-10-08 09:48:16 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:48:16 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:48:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:48:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:48:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:48:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:48:20 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:48:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:48:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:48:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:48:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:48:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:48:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:48:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:48:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:48:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:48:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:48:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:48:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:48:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:48:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:48:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:48:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:48:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:48:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:48:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:48:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:48:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:48:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:48:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:48:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:48:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:48:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:48:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:48:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:48:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:48:34 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:48:13.459724 End time: 2026-10-08 09:48:33.706602 2026-10-08 09:48:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:48:34 INFO tclean::::casa ########################################## 2026-10-08 09:48:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:48:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:48:34 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:48:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:48:34 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:48:34 2026****** 2026-10-08 09:48:34 INFO ImageFitter::fit+ 2026-10-08 09:48:34 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:48:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:48:34 INFO ImageFitter::fit+ --- region: 2026-10-08 09:48:34 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:48:34 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:48:34 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:48:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:48:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:48:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:48:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:48:34 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 09:48:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:48:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:48:34 INFO imstat::::casa ########################################## 2026-10-08 09:48:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:48:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:48:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:48:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:48:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:48:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:48:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:48:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:48:34 INFO imstat:::: Values --- 2026-10-08 09:48:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:48:34 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:48:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:48:34 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-08 09:48:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:48:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:48:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:48:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 09:48:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:48:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:48:34 INFO imstat:::: Statistics --- 2026-10-08 09:48:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:48:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:48:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:48:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:48:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-08 09:48:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-08 09:48:34 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-08 09:48:34 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-08 09:48:34 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:48:34 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-08 09:48:34 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:48:33.771919 End time: 2026-10-08 09:48:33.796052 2026-10-08 09:48:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:48:34 INFO imstat::::casa ########################################## 2026-10-08 09:48:34 INFO phaseshift::::casa ########################################## 2026-10-08 09:48:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:48:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 0.699877030rad' ) 2026-10-08 09:48:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:48:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:48:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:48:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:48:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:48:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:48:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:48:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:48:34 INFO MSTransformManager::open Select data 2026-10-08 09:48:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:48:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:48:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 0.699877030rad' successfully parsed 2026-10-08 09:48:39 INFO phaseshift::::casa Shift phase center 2026-10-08 09:48:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:48:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:48:33.811779 End time: 2026-10-08 09:48:40.170323 2026-10-08 09:48:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:48:40 INFO phaseshift::::casa ########################################## 2026-10-08 09:48:40 INFO tclean::::casa ########################################## 2026-10-08 09:48:40 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:48:40 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:48:40 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:48:40 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:48:40 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:48:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:48:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:48:40 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:48:40 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:48:40 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:48:40 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:48:40 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:48:40 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:48:40 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:48:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:48:42 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01799 2026-10-08 09:48:42 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:48:42 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:48:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:48:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:48:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:48:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:48:44 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:48:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:48:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:48:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:48:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:48:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:48:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:48:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:48:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:48:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:48:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:48:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:48:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:48:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:48:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:48:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:48:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:48:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:48:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:48:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:48:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:48:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:48:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:48:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:48:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:48:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:48:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:48:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:48:53 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:48:53 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:48:55 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:48:40.230440 End time: 2026-10-08 09:48:55.428090 2026-10-08 09:48:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:48:55 INFO tclean::::casa ########################################## 2026-10-08 09:48:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:48:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:48:55 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) 2026-10-08 09:48:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:48:55 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:48:55 2026****** 2026-10-08 09:48:55 INFO ImageFitter::fit+ 2026-10-08 09:48:55 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:48:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:48:55 INFO ImageFitter::fit+ --- region: 2026-10-08 09:48:55 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:48:55 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:48:55 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:48:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:48:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:48:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:48:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:48:55 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) 2026-10-08 09:48:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:48:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:48:55 INFO imstat::::casa ########################################## 2026-10-08 09:48:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:48:55 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 ) 2026-10-08 09:48:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:48:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:48:56 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:48:56 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:48:56 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:48:56 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:48:56 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:48:56 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:48:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:48:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:48:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:48:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:48:56 INFO imstat:::: Values --- 2026-10-08 09:48:56 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:48:56 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:48:56 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:48:56 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-10-08 09:48:56 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:48:56 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 09:48:56 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:48:56 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-08 09:48:56 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:48:56 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:48:56 INFO imstat:::: Statistics --- 2026-10-08 09:48:56 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:48:56 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:48:56 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:48:56 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:48:56 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-10-08 09:48:56 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-08 09:48:56 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-10-08 09:48:56 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-10-08 09:48:56 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-10-08 09:48:56 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:48:56 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:48:56 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:48:56 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:48:56 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:48:56 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:48:56 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 2026-10-08 09:48:56 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:48:55.491955 End time: 2026-10-08 09:48:55.516827 2026-10-08 09:48:56 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:48:56 INFO imstat::::casa ########################################## 2026-10-08 09:48:56 INFO phaseshift::::casa ########################################## 2026-10-08 09:48:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:48:56 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40d06m00' ) 2026-10-08 09:48:56 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:48:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:48:56 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:48:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:48:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:48:56 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:48:56 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:48:56 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:48:56 INFO MSTransformManager::open Select data 2026-10-08 09:48:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:48:59 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:48:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40d06m00' successfully parsed 2026-10-08 09:48:59 INFO phaseshift::::casa Shift phase center 2026-10-08 09:49:00 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:49:00 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:48:55.532566 End time: 2026-10-08 09:49:00.237687 2026-10-08 09:49:00 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:49:00 INFO phaseshift::::casa ########################################## 2026-10-08 09:49:00 INFO tclean::::casa ########################################## 2026-10-08 09:49:00 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:49:00 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:49:00 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:49:00 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:49:00 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:49:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:49:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:49:00 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:49:00 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:49:00 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:49:00 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:49:00 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:49:00 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:49:00 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:49:02 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:49:02 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026806 2026-10-08 09:49:02 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:49:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:49:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:49:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:49:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:49:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:49:06 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:49:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:49:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:49:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:49:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:49:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:49:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:49:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:49:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:49:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:49:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:49:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:49:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:49:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:49:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:49:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:49:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:49:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:49:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:49:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:49:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:49:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:49:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:49:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:49:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:49:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:49:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:49:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:49:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:49:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:49:20 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:49:00.294655 End time: 2026-10-08 09:49:20.027601 2026-10-08 09:49:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:49:20 INFO tclean::::casa ########################################## 2026-10-08 09:49:20 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:49:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:49:20 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:49:20 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:49:20 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:49:20 2026****** 2026-10-08 09:49:20 INFO ImageFitter::fit+ 2026-10-08 09:49:20 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:49:20 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:49:20 INFO ImageFitter::fit+ --- region: 2026-10-08 09:49:20 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:49:20 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:49:20 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:49:20 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:49:20 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:49:20 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:49:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:49:20 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 09:49:20 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:49:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:49:20 INFO imstat::::casa ########################################## 2026-10-08 09:49:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:49:20 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:49:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:49:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:49:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:49:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:49:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:49:20 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:49:20 INFO imstat:::: Values --- 2026-10-08 09:49:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:49:20 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:49:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:49:20 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-08 09:49:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:49:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:49:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:49:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 09:49:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:49:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:49:20 INFO imstat:::: Statistics --- 2026-10-08 09:49:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:49:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:49:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:49:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:49:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-08 09:49:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-08 09:49:20 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-08 09:49:20 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-08 09:49:20 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:49:20 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-08 09:49:20 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:49:20.101862 End time: 2026-10-08 09:49:20.136382 2026-10-08 09:49:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:49:20 INFO imstat::::casa ########################################## 2026-10-08 09:49:20 INFO phaseshift::::casa ########################################## 2026-10-08 09:49:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:49:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 02:40:24.0000' ) 2026-10-08 09:49:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:49:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:49:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:49:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:49:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:49:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:49:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:49:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:49:20 INFO MSTransformManager::open Select data 2026-10-08 09:49:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:49:24 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 ".". 2026-10-08 09:49:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 02:40:24.0000' successfully parsed 2026-10-08 09:49:24 INFO phaseshift::::casa Shift phase center 2026-10-08 09:49:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:49:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:49:20.152222 End time: 2026-10-08 09:49:24.861314 2026-10-08 09:49:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:49:25 INFO phaseshift::::casa ########################################## 2026-10-08 09:49:25 INFO tclean::::casa ########################################## 2026-10-08 09:49:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:49:25 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:49:25 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:49:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:49:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:49:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:49:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:49:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:49:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:49:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:49:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:49:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:49:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:49:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:49:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:49:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024541 2026-10-08 09:49:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:49:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:49:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:49:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:49:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:49:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:49:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:49:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:49:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:49:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:49:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:49:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:49:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:49:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:49:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:49:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:49:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:49:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:49:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:49:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:49:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:49:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:49:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:49:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:49:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:49:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:49:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:49:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:49:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:49:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:49:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:49:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:49:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:49:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:49:41 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:49:41 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:49:42 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:49:24.919659 End time: 2026-10-08 09:49:42.459602 2026-10-08 09:49:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:49:42 INFO tclean::::casa ########################################## 2026-10-08 09:49:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:49:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:49:42 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) 2026-10-08 09:49:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:49:42 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:49:42 2026****** 2026-10-08 09:49:42 INFO ImageFitter::fit+ 2026-10-08 09:49:42 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:49:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:49:42 INFO ImageFitter::fit+ --- region: 2026-10-08 09:49:42 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:49:42 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:49:42 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:49:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:49:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:49:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:49:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:49:43 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 09:49:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:49:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:49:43 INFO imstat::::casa ########################################## 2026-10-08 09:49:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:49:43 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:49:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:49:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:49:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:49:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:49:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:49:43 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) 2026-10-08 09:49:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:49:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:49:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:49:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:49:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:49:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:49:43 INFO imstat:::: Values --- 2026-10-08 09:49:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:49:43 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:49:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:49:43 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-08 09:49:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:49:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:49:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:49:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 09:49:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:49:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:49:43 INFO imstat:::: Statistics --- 2026-10-08 09:49:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:49:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:49:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:49:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:49:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-08 09:49:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-08 09:49:43 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-08 09:49:43 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-08 09:49:43 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-08 09:49:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:49:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:49:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:49:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:49:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:49:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:49:43 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 2026-10-08 09:49:43 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:49:42.535026 End time: 2026-10-08 09:49:42.561337 2026-10-08 09:49:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:49:43 INFO imstat::::casa ########################################## 2026-10-08 09:49:43 INFO phaseshift::::casa ########################################## 2026-10-08 09:49:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:49:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40.100000000deg' ) 2026-10-08 09:49:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:49:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:49:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:49:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:49:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:49:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:49:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:49:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:49:43 INFO MSTransformManager::open Select data 2026-10-08 09:49:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:49:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:49:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40.100000000deg' successfully parsed 2026-10-08 09:49:48 INFO phaseshift::::casa Shift phase center 2026-10-08 09:49:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:49:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:49:42.578433 End time: 2026-10-08 09:49:49.719063 2026-10-08 09:49:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:49:50 INFO phaseshift::::casa ########################################## 2026-10-08 09:49:50 INFO tclean::::casa ########################################## 2026-10-08 09:49:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:49:50 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:49:50 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:49:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:49:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:49:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:49:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:49:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:49:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:49:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:49:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:49:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:49:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:49:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:49:52 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:49:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024945 2026-10-08 09:49:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:49:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:49:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:49:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:49:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:49:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:49:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:49:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:49:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:49:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:49:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:49:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:49:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:49:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:49:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:49:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:49:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:49:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:49:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:49:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:49:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:50:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:50:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:50:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:50:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:50:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:50:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:50:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:50:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:50:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:50:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:50:04 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:50:04 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:50:04 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:50:05 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:50:05 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:50:08 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:49:49.771398 End time: 2026-10-08 09:50:07.873253 2026-10-08 09:50:08 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:50:08 INFO tclean::::casa ########################################## 2026-10-08 09:50:08 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:50:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:50:08 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) 2026-10-08 09:50:08 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:50:08 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:50:08 2026****** 2026-10-08 09:50:08 INFO ImageFitter::fit+ 2026-10-08 09:50:08 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:50:08 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:50:08 INFO ImageFitter::fit+ --- region: 2026-10-08 09:50:08 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:50:08 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:50:08 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:50:08 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:50:08 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:50:08 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:50:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:50:08 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) 2026-10-08 09:50:08 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:50:08 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:50:08 INFO imstat::::casa ########################################## 2026-10-08 09:50:08 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:50:08 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 ) 2026-10-08 09:50:08 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:50:08 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:50:08 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:50:08 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:50:08 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:50:08 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) 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:50:08 INFO imstat:::: Values --- 2026-10-08 09:50:08 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:50:08 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:50:08 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:50:08 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-10-08 09:50:08 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:50:08 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:50:08 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:50:08 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 09:50:08 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:50:08 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:50:08 INFO imstat:::: Statistics --- 2026-10-08 09:50:08 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:50:08 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:50:08 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:50:08 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:50:08 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-10-08 09:50:08 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-10-08 09:50:08 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-10-08 09:50:08 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-10-08 09:50:08 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:50:08 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-10-08 09:50:08 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:50:07.956828 End time: 2026-10-08 09:50:07.985107 2026-10-08 09:50:08 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:50:08 INFO imstat::::casa ########################################## 2026-10-08 09:50:08 INFO phaseshift::::casa ########################################## 2026-10-08 09:50:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:50:08 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 0.699877030rad' ) 2026-10-08 09:50:08 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:50:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:50:08 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:50:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:50:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:50:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:50:08 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:50:08 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:50:08 INFO MSTransformManager::open Select data 2026-10-08 09:50:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:50:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:50:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 0.699877030rad' successfully parsed 2026-10-08 09:50:12 INFO phaseshift::::casa Shift phase center 2026-10-08 09:50:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:50:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:50:08.002953 End time: 2026-10-08 09:50:14.424178 2026-10-08 09:50:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:50:14 INFO phaseshift::::casa ########################################## 2026-10-08 09:50:14 INFO tclean::::casa ########################################## 2026-10-08 09:50:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:50:14 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:50:14 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:50:15 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:50:15 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:50:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:50:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:50:15 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:50:15 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:50:15 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:50:15 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:50:15 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:50:15 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:50:15 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:50:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:50:17 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023227 2026-10-08 09:50:17 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:50:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:50:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:50:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:50:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:50:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:50:20 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:50:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:50:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:50:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:50:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:50:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:50:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:50:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:50:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:50:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:50:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:50:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:50:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:50:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:50:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:50:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:50:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:50:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:50:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:50:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:50:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:50:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:50:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:50:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:50:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:50:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:50:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:50:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:50:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:50:32 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:50:34 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:50:14.484157 End time: 2026-10-08 09:50:34.027253 2026-10-08 09:50:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:50:34 INFO tclean::::casa ########################################## 2026-10-08 09:50:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:50:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:50:34 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:50:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:50:34 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:50:34 2026****** 2026-10-08 09:50:34 INFO ImageFitter::fit+ 2026-10-08 09:50:34 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:50:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:50:34 INFO ImageFitter::fit+ --- region: 2026-10-08 09:50:34 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:50:34 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:50:34 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:50:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:50:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:50:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:50:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:50:34 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 09:50:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:50:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:50:34 INFO imstat::::casa ########################################## 2026-10-08 09:50:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:50:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:50:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:50:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:50:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:50:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:50:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:50:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:50:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:50:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:50:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:50:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:50:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:50:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:50:34 INFO imstat:::: Values --- 2026-10-08 09:50:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:50:34 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:50:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:50:34 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-10-08 09:50:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:50:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 09:50:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:50:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-08 09:50:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:50:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:50:34 INFO imstat:::: Statistics --- 2026-10-08 09:50:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:50:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:50:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:50:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:50:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-10-08 09:50:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-08 09:50:34 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-10-08 09:50:34 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-10-08 09:50:34 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-10-08 09:50:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:50:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:50:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:50:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:50:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:50:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:50:34 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 2026-10-08 09:50:34 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:50:34.101862 End time: 2026-10-08 09:50:34.128381 2026-10-08 09:50:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:50:34 INFO imstat::::casa ########################################## 2026-10-08 09:50:34 INFO phaseshift::::casa ########################################## 2026-10-08 09:50:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:50:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40d06m00' ) 2026-10-08 09:50:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:50:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:50:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:50:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:50:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:50:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:50:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:50:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:50:34 INFO MSTransformManager::open Select data 2026-10-08 09:50:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:50:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:50:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40d06m00' successfully parsed 2026-10-08 09:50:39 INFO phaseshift::::casa Shift phase center 2026-10-08 09:50:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:50:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:50:34.144987 End time: 2026-10-08 09:50:40.523049 2026-10-08 09:50:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:50:41 INFO phaseshift::::casa ########################################## 2026-10-08 09:50:41 INFO tclean::::casa ########################################## 2026-10-08 09:50:41 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:50:41 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:50:41 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:50:41 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:50:41 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:50:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:50:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:50:41 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:50:41 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:50:41 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:50:41 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:50:41 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:50:41 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:50:41 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:50:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:50:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02468 2026-10-08 09:50:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:50:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:50:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:50:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:50:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:50:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:50:47 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:50:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:50:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:50:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:50:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:50:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:50:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:50:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:50:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:50:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:50:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:50:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:50:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:50:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:50:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:50:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:50:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:50:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:50:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:50:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:50:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:50:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:50:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:50:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:50:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:50:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:50:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:50:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:50:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:50:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:51:01 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:50:40.579932 End time: 2026-10-08 09:51:01.421261 2026-10-08 09:51:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:51:01 INFO tclean::::casa ########################################## 2026-10-08 09:51:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:51:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:51:01 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) 2026-10-08 09:51:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:51:01 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:51:01 2026****** 2026-10-08 09:51:01 INFO ImageFitter::fit+ 2026-10-08 09:51:01 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:51:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:51:01 INFO ImageFitter::fit+ --- region: 2026-10-08 09:51:01 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:51:01 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:51:01 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:51:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:51:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:51:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:51:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:51:01 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) 2026-10-08 09:51:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:51:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:51:01 INFO imstat::::casa ########################################## 2026-10-08 09:51:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:51:01 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 ) 2026-10-08 09:51:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:51:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:51:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:51:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:51:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:51:01 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) 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:51:02 INFO imstat:::: Values --- 2026-10-08 09:51:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:51:02 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:51:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:51:02 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-10-08 09:51:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:51:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:51:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:51:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 09:51:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:51:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:51:02 INFO imstat:::: Statistics --- 2026-10-08 09:51:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:51:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:51:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:51:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:51:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-10-08 09:51:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-08 09:51:02 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-10-08 09:51:02 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-08 09:51:02 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:51:02 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777580e-05 4.999996e+00 2026-10-08 09:51:02 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:51:01.488044 End time: 2026-10-08 09:51:01.512915 2026-10-08 09:51:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:51:02 INFO imstat::::casa ########################################## 2026-10-08 09:51:02 INFO phaseshift::::casa ########################################## 2026-10-08 09:51:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:51:02 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 02:40:24.0000' ) 2026-10-08 09:51:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:51:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:51:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:51:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:51:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:51:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:51:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:51:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:51:02 INFO MSTransformManager::open Select data 2026-10-08 09:51:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:51:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-08 09:51:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 02:40:24.0000' successfully parsed 2026-10-08 09:51:07 INFO phaseshift::::casa Shift phase center 2026-10-08 09:51:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:51:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:51:01.528993 End time: 2026-10-08 09:51:08.026824 2026-10-08 09:51:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:51:08 INFO phaseshift::::casa ########################################## 2026-10-08 09:51:08 INFO tclean::::casa ########################################## 2026-10-08 09:51:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:51:08 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:51:08 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:51:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:51:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:51:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:51:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:51:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:51:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:51:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:51:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:51:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:51:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:51:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:51:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:51:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025715 2026-10-08 09:51:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:51:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:51:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:51:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:51:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:51:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:51:12 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:51:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:51:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:51:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:51:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:51:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:51:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:51:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:51:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:51:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:51:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:51:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:51:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:51:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:51:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:51:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:51:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:51:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:51:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:51:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:51:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:51:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:51:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:51:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:51:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:51:21 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:51:21 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:51:21 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:51:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:51:22 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:51:25 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:51:08.086827 End time: 2026-10-08 09:51:24.969931 2026-10-08 09:51:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:51:25 INFO tclean::::casa ########################################## 2026-10-08 09:51:25 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:51:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:51:25 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:51:25 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:51:25 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:51:25 2026****** 2026-10-08 09:51:25 INFO ImageFitter::fit+ 2026-10-08 09:51:25 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:51:25 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:51:25 INFO ImageFitter::fit+ --- region: 2026-10-08 09:51:25 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:51:25 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:51:25 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:51:25 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:51:25 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:51:25 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:51:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:51:25 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 09:51:25 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:51:25 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:51:25 INFO imstat::::casa ########################################## 2026-10-08 09:51:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:51:25 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:51:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:51:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:51:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:51:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:51:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:51:25 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:51:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:51:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:51:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:51:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:51:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:51:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:51:25 INFO imstat:::: Values --- 2026-10-08 09:51:25 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:51:25 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:51:25 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:51:25 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-10-08 09:51:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:51:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:51:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:51:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 09:51:25 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:51:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:51:25 INFO imstat:::: Statistics --- 2026-10-08 09:51:25 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:51:25 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:51:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:51:25 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:51:25 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-10-08 09:51:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-08 09:51:25 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-10-08 09:51:25 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-08 09:51:25 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-10-08 09:51:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:51:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:51:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:51:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:51:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:51:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:51:25 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 2026-10-08 09:51:25 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:51:25.050641 End time: 2026-10-08 09:51:25.078514 2026-10-08 09:51:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:51:25 INFO imstat::::casa ########################################## 2026-10-08 09:51:25 INFO phaseshift::::casa ########################################## 2026-10-08 09:51:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:51:25 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40.100000000deg' ) 2026-10-08 09:51:25 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:51:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:51:25 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:51:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:51:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:51:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:51:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:51:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:51:25 INFO MSTransformManager::open Select data 2026-10-08 09:51:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:51:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:51:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40.100000000deg' successfully parsed 2026-10-08 09:51:29 INFO phaseshift::::casa Shift phase center 2026-10-08 09:51:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:51:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:51:25.096688 End time: 2026-10-08 09:51:30.394439 2026-10-08 09:51:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:51:30 INFO phaseshift::::casa ########################################## 2026-10-08 09:51:30 INFO tclean::::casa ########################################## 2026-10-08 09:51:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:51:30 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:51:30 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:51:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:51:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:51:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:51:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:51:31 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:51:31 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:51:31 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:51:31 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:51:31 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:51:31 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:51:31 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:51:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:51:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024872 2026-10-08 09:51:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:51:33 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:51:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:51:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:51:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:51:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:51:35 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:51:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:51:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:51:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:51:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:51:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:51:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:51:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:51:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:51:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:51:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:51:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:51:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:51:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:51:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:51:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:51:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:51:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:51:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:51:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:51:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:51:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:51:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:51:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:51:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:51:44 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:51:44 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:51:44 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:51:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:51:46 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:51:50 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:51:30.450493 End time: 2026-10-08 09:51:49.619341 2026-10-08 09:51:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:51:50 INFO tclean::::casa ########################################## 2026-10-08 09:51:50 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:51:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:51:50 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) 2026-10-08 09:51:50 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:51:50 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:51:50 2026****** 2026-10-08 09:51:50 INFO ImageFitter::fit+ 2026-10-08 09:51:50 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:51:50 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:51:50 INFO ImageFitter::fit+ --- region: 2026-10-08 09:51:50 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:51:50 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:51:50 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:51:50 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:51:50 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:51:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:51:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:51:50 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) 2026-10-08 09:51:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:51:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:51:50 INFO imstat::::casa ########################################## 2026-10-08 09:51:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:51:50 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 ) 2026-10-08 09:51:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:51:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:51:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:51:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:51:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:51:50 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) 2026-10-08 09:51:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:51:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:51:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:51:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:51:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:51:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:51:50 INFO imstat:::: Values --- 2026-10-08 09:51:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:51:50 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:51:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:51:50 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-10-08 09:51:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:51:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:51:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:51:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 09:51:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:51:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:51:50 INFO imstat:::: Statistics --- 2026-10-08 09:51:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:51:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:51:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:51:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:51:50 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-10-08 09:51:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-10-08 09:51:50 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-10-08 09:51:50 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-08 09:51:50 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-10-08 09:51:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:51:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:51:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:51:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:51:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:51:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:51:50 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 2026-10-08 09:51:50 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:51:49.694604 End time: 2026-10-08 09:51:49.721284 2026-10-08 09:51:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:51:50 INFO imstat::::casa ########################################## 2026-10-08 09:51:50 INFO phaseshift::::casa ########################################## 2026-10-08 09:51:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:51:50 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 298.458333333deg 0.699877030rad' ) 2026-10-08 09:51:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:51:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:51:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:51:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:51:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:51:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:51:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:51:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:51:50 INFO MSTransformManager::open Select data 2026-10-08 09:51:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:51:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:51:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 0.699877030rad' successfully parsed 2026-10-08 09:51:54 INFO phaseshift::::casa Shift phase center 2026-10-08 09:51:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:51:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:51:49.738133 End time: 2026-10-08 09:51:55.427986 2026-10-08 09:51:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:51:55 INFO phaseshift::::casa ########################################## 2026-10-08 09:51:55 INFO tclean::::casa ########################################## 2026-10-08 09:51:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:51:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:51:55 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:51:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:51:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:51:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:51:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:51:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:51:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:51:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:51:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:51:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:51:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:51:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:51:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:51:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024715 2026-10-08 09:51:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:51:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:51:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:52:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:52:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:52:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:52:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:52:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:52:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:52:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:52:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:52:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:52:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:52:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:52:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:52:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:52:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:52:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:52:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:52:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:52:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:52:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:52:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:52:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:52:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:52:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:52:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:52:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:52:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:52:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:52:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:52:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:52:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:52:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:52:15 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:52:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:52:18 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:51:55.489317 End time: 2026-10-08 09:52:17.544891 2026-10-08 09:52:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:52:18 INFO tclean::::casa ########################################## 2026-10-08 09:52:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:52:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:52:18 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) 2026-10-08 09:52:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:52:18 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:52:18 2026****** 2026-10-08 09:52:18 INFO ImageFitter::fit+ 2026-10-08 09:52:18 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:52:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:52:18 INFO ImageFitter::fit+ --- region: 2026-10-08 09:52:18 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:52:18 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:52:18 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:52:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:52:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:52:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:52:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:52:18 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) 2026-10-08 09:52:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:52:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:52:18 INFO imstat::::casa ########################################## 2026-10-08 09:52:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:52:18 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 ) 2026-10-08 09:52:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:52:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:52:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:52:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:52:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:52:18 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) 2026-10-08 09:52:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:52:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:52:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:52:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:52:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:52:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:52:18 INFO imstat:::: Values --- 2026-10-08 09:52:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:52:18 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:52:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:52:18 INFO imstat:::: -- minimum value [min]: -7.77738e-05 Jy/beam 2026-10-08 09:52:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:52:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:52:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:52:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 09:52:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:52:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:52:18 INFO imstat:::: Statistics --- 2026-10-08 09:52:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:52:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:52:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:52:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:52:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86662e-05 Jy/beam 2026-10-08 09:52:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73577e-05 Jy/beam 2026-10-08 09:52:18 INFO imstat:::: -- IQR [quartile]: 3.56242e-05 Jy/beam 2026-10-08 09:52:18 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-10-08 09:52:18 INFO imstat:::: -- Third quartile [q3]: 1.11673e-06 Jy/beam 2026-10-08 09:52:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:52:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:52:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:52:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:52:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:52:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:52:18 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 2026-10-08 09:52:18 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:52:17.617916 End time: 2026-10-08 09:52:17.643780 2026-10-08 09:52:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:52:18 INFO imstat::::casa ########################################## 2026-10-08 09:52:18 INFO phaseshift::::casa ########################################## 2026-10-08 09:52:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:52:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40d06m00' ) 2026-10-08 09:52:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:52:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:52:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:52:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:52:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:52:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:52:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:52:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:52:18 INFO MSTransformManager::open Select data 2026-10-08 09:52:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:52:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:52:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40d06m00' successfully parsed 2026-10-08 09:52:22 INFO phaseshift::::casa Shift phase center 2026-10-08 09:52:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:52:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:52:17.660253 End time: 2026-10-08 09:52:23.658954 2026-10-08 09:52:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:52:24 INFO phaseshift::::casa ########################################## 2026-10-08 09:52:24 INFO tclean::::casa ########################################## 2026-10-08 09:52:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:52:24 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:52:24 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:52:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:52:24 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:52:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:52:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:52:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:52:24 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:52:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:52:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.98 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:52:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:52:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:52:24 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:52:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:52:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024479 2026-10-08 09:52:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:52:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:52:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:52:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:52:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:52:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:52:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:52:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:52:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:52:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:52:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:52:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:52:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:52:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:52:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:52:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:52:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:52:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:52:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:52:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:52:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:52:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:52:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:52:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:52:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:52:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:52:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:52:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:52:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:52:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:52:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:52:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:52:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:52:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:52:37 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:52:38 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:52:40 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:52:23.717028 End time: 2026-10-08 09:52:39.506674 2026-10-08 09:52:40 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:52:40 INFO tclean::::casa ########################################## 2026-10-08 09:52:40 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:52:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:52:40 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:52:40 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:52:40 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:52:40 2026****** 2026-10-08 09:52:40 INFO ImageFitter::fit+ 2026-10-08 09:52:40 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:52:40 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:52:40 INFO ImageFitter::fit+ --- region: 2026-10-08 09:52:40 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:52:40 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:52:40 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:52:40 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:52:40 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:52:40 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:52:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:52:40 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 09:52:40 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:52:40 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:52:40 INFO imstat::::casa ########################################## 2026-10-08 09:52:40 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:52:40 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:52:40 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:52:40 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:52:40 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:52:40 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:52:40 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:52:40 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:52:40 INFO imstat:::: Values --- 2026-10-08 09:52:40 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:52:40 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:52:40 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:52:40 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-08 09:52:40 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:52:40 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 09:52:40 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:52:40 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-08 09:52:40 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:52:40 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:52:40 INFO imstat:::: Statistics --- 2026-10-08 09:52:40 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:52:40 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:52:40 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:52:40 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:52:40 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-10-08 09:52:40 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-10-08 09:52:40 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-10-08 09:52:40 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-10-08 09:52:40 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:52:40 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778010e-05 4.999996e+00 2026-10-08 09:52:40 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:52:39.595194 End time: 2026-10-08 09:52:39.627584 2026-10-08 09:52:40 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:52:40 INFO imstat::::casa ########################################## 2026-10-08 09:52:40 INFO phaseshift::::casa ########################################## 2026-10-08 09:52:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:52:40 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 02:40:24.0000' ) 2026-10-08 09:52:40 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:52:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:52:40 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:52:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:52:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:52:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:52:40 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:52:40 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:52:40 INFO MSTransformManager::open Select data 2026-10-08 09:52:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:52:44 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 ".". 2026-10-08 09:52:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 02:40:24.0000' successfully parsed 2026-10-08 09:52:44 INFO phaseshift::::casa Shift phase center 2026-10-08 09:52:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:52:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:52:39.648124 End time: 2026-10-08 09:52:45.357336 2026-10-08 09:52:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:52:45 INFO phaseshift::::casa ########################################## 2026-10-08 09:52:45 INFO tclean::::casa ########################################## 2026-10-08 09:52:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:52:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:52:45 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:52:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:52:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:52:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:52:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:52:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:52:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:52:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:52:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.98 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:52:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:52:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:52:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:52:48 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:52:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01597 2026-10-08 09:52:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:52:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:52:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:52:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:52:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:52:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:52:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:52:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:52:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:52:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:52:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:52:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:52:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:52:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:52:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:52:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:52:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:52:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:52:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:52:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:52:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:52:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:52:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:52:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:52:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:52:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:52:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:52:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:52:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:52:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:53:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:53:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:53:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:53:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:53:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:53:02 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:53:04 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:52:45.415081 End time: 2026-10-08 09:53:04.470704 2026-10-08 09:53:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:53:04 INFO tclean::::casa ########################################## 2026-10-08 09:53:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:53:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:53:04 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:53:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:53:05 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:53:05 2026****** 2026-10-08 09:53:05 INFO ImageFitter::fit+ 2026-10-08 09:53:05 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:53:05 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:53:05 INFO ImageFitter::fit+ --- region: 2026-10-08 09:53:05 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:53:05 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:53:05 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:53:05 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:53:05 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:53:05 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:53:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:53:05 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) 2026-10-08 09:53:05 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:53:05 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:53:05 INFO imstat::::casa ########################################## 2026-10-08 09:53:05 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:53:05 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 ) 2026-10-08 09:53:05 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:53:05 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:53:05 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:53:05 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:53:05 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:53:05 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) 2026-10-08 09:53:05 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:53:05 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:53:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:53:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:53:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:53:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:53:05 INFO imstat:::: Values --- 2026-10-08 09:53:05 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:53:05 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:53:05 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:53:05 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-08 09:53:05 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:53:05 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 09:53:05 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:53:05 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-08 09:53:05 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:53:05 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:53:05 INFO imstat:::: Statistics --- 2026-10-08 09:53:05 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:53:05 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:53:05 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:53:05 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:53:05 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-10-08 09:53:05 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-10-08 09:53:05 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-10-08 09:53:05 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-10-08 09:53:05 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-10-08 09:53:05 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:53:05 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:53:05 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:53:05 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:53:05 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:53:05 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:53:05 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 2026-10-08 09:53:05 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:53:04.539888 End time: 2026-10-08 09:53:04.573031 2026-10-08 09:53:05 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:53:05 INFO imstat::::casa ########################################## 2026-10-08 09:53:05 INFO phaseshift::::casa ########################################## 2026-10-08 09:53:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:53:05 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 40.100000000deg' ) 2026-10-08 09:53:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:53:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:53:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:53:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:53:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:53:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:53:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:53:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:53:05 INFO MSTransformManager::open Select data 2026-10-08 09:53:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:53:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:53:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40.100000000deg' successfully parsed 2026-10-08 09:53:08 INFO phaseshift::::casa Shift phase center 2026-10-08 09:53:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:53:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:53:04.588355 End time: 2026-10-08 09:53:09.763913 2026-10-08 09:53:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:53:10 INFO phaseshift::::casa ########################################## 2026-10-08 09:53:10 INFO tclean::::casa ########################################## 2026-10-08 09:53:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:53:10 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:53:10 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:53:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:53:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:53:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:53:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:53:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:53:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:53:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:53:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 47.99 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:53:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:53:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:53:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:53:12 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:53:12 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02747 2026-10-08 09:53:12 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:53:12 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:53:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:53:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:53:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:53:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:53:16 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:53:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:53:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:53:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:53:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:53:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:53:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:53:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:53:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:53:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:53:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:53:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:53:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:53:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:53:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:53:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:53:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:53:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:53:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:53:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:53:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:53:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:53:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:53:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:53:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:53:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:53:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:53:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:53:28 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:53:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:53:30 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:53:09.814015 End time: 2026-10-08 09:53:29.976431 2026-10-08 09:53:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:53:30 INFO tclean::::casa ########################################## 2026-10-08 09:53:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:53:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:53:30 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) 2026-10-08 09:53:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:53:30 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:53:30 2026****** 2026-10-08 09:53:30 INFO ImageFitter::fit+ 2026-10-08 09:53:30 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:53:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:53:30 INFO ImageFitter::fit+ --- region: 2026-10-08 09:53:30 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:53:30 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:53:30 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:53:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:53:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:53:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:53:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:53:30 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) 2026-10-08 09:53:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:53:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:53:30 INFO imstat::::casa ########################################## 2026-10-08 09:53:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:53:30 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 ) 2026-10-08 09:53:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:53:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:53:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:53:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:53:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:53:30 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) 2026-10-08 09:53:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:53:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:53:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:53:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:53:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:53:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:53:30 INFO imstat:::: Values --- 2026-10-08 09:53:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:53:30 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:53:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:53:30 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-08 09:53:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:53:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 09:53:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:53:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-08 09:53:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:53:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:53:30 INFO imstat:::: Statistics --- 2026-10-08 09:53:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:53:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:53:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:53:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:53:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-10-08 09:53:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-10-08 09:53:30 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-10-08 09:53:30 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-10-08 09:53:30 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-10-08 09:53:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:53:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:53:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:53:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:53:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:53:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:53:30 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 2026-10-08 09:53:30 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:53:30.056330 End time: 2026-10-08 09:53:30.083581 2026-10-08 09:53:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:53:30 INFO imstat::::casa ########################################## 2026-10-08 09:53:30 INFO phaseshift::::casa ########################################## 2026-10-08 09:53:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:53:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 0.699877030rad' ) 2026-10-08 09:53:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:53:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:53:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:53:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:53:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:53:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:53:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:53:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:53:30 INFO MSTransformManager::open Select data 2026-10-08 09:53:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:53:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:53:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 0.699877030rad' successfully parsed 2026-10-08 09:53:34 INFO phaseshift::::casa Shift phase center 2026-10-08 09:53:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:53:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:53:30.100537 End time: 2026-10-08 09:53:36.013755 2026-10-08 09:53:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:53:36 INFO phaseshift::::casa ########################################## 2026-10-08 09:53:36 INFO tclean::::casa ########################################## 2026-10-08 09:53:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:53:36 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:53:36 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:53:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:53:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:53:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:53:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:53:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:53:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:53:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:53:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:53:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:53:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:53:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:53:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:53:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024598 2026-10-08 09:53:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:53:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:53:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:53:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:53:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:53:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:53:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:53:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:53:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:53:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:53:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:53:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:53:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:53:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:53:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:53:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:53:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:53:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:53:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:53:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:53:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:53:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:53:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:53:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:53:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:53:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:53:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:53:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:53:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:53:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:53:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:53:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:53:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:53:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:53:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:53:50 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:53:51 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:53:36.073685 End time: 2026-10-08 09:53:51.180311 2026-10-08 09:53:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:53:51 INFO tclean::::casa ########################################## 2026-10-08 09:53:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:53:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:53:51 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) 2026-10-08 09:53:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:53:51 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:53:51 2026****** 2026-10-08 09:53:51 INFO ImageFitter::fit+ 2026-10-08 09:53:51 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:53:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:53:51 INFO ImageFitter::fit+ --- region: 2026-10-08 09:53:51 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:53:51 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:53:51 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:53:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:53:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:53:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:53:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:53:51 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) 2026-10-08 09:53:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:53:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:53:51 INFO imstat::::casa ########################################## 2026-10-08 09:53:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:53:51 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 ) 2026-10-08 09:53:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:53:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:53:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:53:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:53:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:53:51 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) 2026-10-08 09:53:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:53:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:53:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:53:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:53:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:53:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:53:51 INFO imstat:::: Values --- 2026-10-08 09:53:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:53:51 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:53:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:53:51 INFO imstat:::: -- minimum value [min]: -7.77793e-05 Jy/beam 2026-10-08 09:53:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:53:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 09:53:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:53:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-08 09:53:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:53:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:53:51 INFO imstat:::: Statistics --- 2026-10-08 09:53:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:53:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:53:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:53:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:53:51 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-10-08 09:53:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73592e-05 Jy/beam 2026-10-08 09:53:51 INFO imstat:::: -- IQR [quartile]: 3.55982e-05 Jy/beam 2026-10-08 09:53:51 INFO imstat:::: -- First quartile [q1]: -3.45035e-05 Jy/beam 2026-10-08 09:53:51 INFO imstat:::: -- Third quartile [q3]: 1.09469e-06 Jy/beam 2026-10-08 09:53:51 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:53:51 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:53:51 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:53:51 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:53:51 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:53:51 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:53:51 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 2026-10-08 09:53:51 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:53:51.252945 End time: 2026-10-08 09:53:51.279213 2026-10-08 09:53:51 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:53:51 INFO imstat::::casa ########################################## 2026-10-08 09:53:51 INFO phaseshift::::casa ########################################## 2026-10-08 09:53:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:53:51 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 19h53m49.9980 40d06m0.0019' ) 2026-10-08 09:53:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:53:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:53:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:53:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:53:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:53:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:53:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:53:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:53:51 INFO MSTransformManager::open Select data 2026-10-08 09:53:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:53:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:53:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40d06m0.0019' successfully parsed 2026-10-08 09:53:55 INFO phaseshift::::casa Shift phase center 2026-10-08 09:53:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:53:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:53:51.296511 End time: 2026-10-08 09:53:56.806108 2026-10-08 09:53:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:53:57 INFO phaseshift::::casa ########################################## 2026-10-08 09:53:57 INFO tclean::::casa ########################################## 2026-10-08 09:53:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:53:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:53:57 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:53:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:53:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:53:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:53:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:53:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:53:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:53:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:53:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:53:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:53:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:53:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:53:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:53:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024974 2026-10-08 09:53:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:53:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:54:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:54:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:54:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:54:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:54:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:54:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:54:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:54:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:54:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:54:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:54:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:54:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:54:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:54:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:54:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:54:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:54:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:54:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:54:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:54:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:54:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:54:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:54:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:54:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:54:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:54:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:54:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:54:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:54:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:54:11 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:54:11 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:54:11 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:54:12 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:54:13 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:54:14 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:53:56.863163 End time: 2026-10-08 09:54:14.165990 2026-10-08 09:54:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:54:14 INFO tclean::::casa ########################################## 2026-10-08 09:54:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:54:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:54:14 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) 2026-10-08 09:54:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:54:14 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:54:14 2026****** 2026-10-08 09:54:14 INFO ImageFitter::fit+ 2026-10-08 09:54:14 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:54:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:54:14 INFO ImageFitter::fit+ --- region: 2026-10-08 09:54:14 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:54:14 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:54:14 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:54:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:54:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:54:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:54:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:54:14 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) 2026-10-08 09:54:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:54:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:54:14 INFO imstat::::casa ########################################## 2026-10-08 09:54:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:54:14 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 ) 2026-10-08 09:54:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:54:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:54:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:54:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:54:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:54:14 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) 2026-10-08 09:54:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:54:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:54:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:54:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:54:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:54:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:54:14 INFO imstat:::: Values --- 2026-10-08 09:54:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:54:14 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:54:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:54:14 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-08 09:54:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:54:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:54:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:54:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-08 09:54:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:54:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:54:14 INFO imstat:::: Statistics --- 2026-10-08 09:54:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:54:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:54:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:54:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:54:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-10-08 09:54:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-10-08 09:54:14 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-10-08 09:54:14 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-10-08 09:54:14 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-10-08 09:54:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:54:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:54:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:54:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:54:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:54:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:54:14 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 2026-10-08 09:54:14 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:54:14.242417 End time: 2026-10-08 09:54:14.269557 2026-10-08 09:54:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:54:14 INFO imstat::::casa ########################################## 2026-10-08 09:54:14 INFO phaseshift::::casa ########################################## 2026-10-08 09:54:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:54:14 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 02:40:24.0001' ) 2026-10-08 09:54:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:54:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:54:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:54:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:54:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:54:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:54:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:54:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:54:14 INFO MSTransformManager::open Select data 2026-10-08 09:54:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:54:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-08 09:54:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 02:40:24.0001' successfully parsed 2026-10-08 09:54:18 INFO phaseshift::::casa Shift phase center 2026-10-08 09:54:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:54:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:54:14.286722 End time: 2026-10-08 09:54:19.114312 2026-10-08 09:54:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:54:19 INFO phaseshift::::casa ########################################## 2026-10-08 09:54:19 INFO tclean::::casa ########################################## 2026-10-08 09:54:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:54:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:54:19 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:54:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:54:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:54:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:54:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:54:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:54:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:54:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:54:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:54:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:54:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:54:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:54:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:54:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026749 2026-10-08 09:54:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:54:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:54:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:54:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:54:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:54:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:54:24 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:54:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:54:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:54:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:54:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:54:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:54:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:54:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:54:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:54:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:54:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:54:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:54:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:54:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:54:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:54:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:54:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:54:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:54:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:54:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:54:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:54:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:54:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:54:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:54:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:54:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:54:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:54:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:54:32 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:54:32 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:54:34 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:54:19.173879 End time: 2026-10-08 09:54:33.878537 2026-10-08 09:54:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:54:34 INFO tclean::::casa ########################################## 2026-10-08 09:54:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:54:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:54:34 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:54:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:54:34 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:54:34 2026****** 2026-10-08 09:54:34 INFO ImageFitter::fit+ 2026-10-08 09:54:34 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:54:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:54:34 INFO ImageFitter::fit+ --- region: 2026-10-08 09:54:34 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:54:34 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:54:34 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:54:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:54:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:54:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:54:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:54:34 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) 2026-10-08 09:54:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:54:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:54:34 INFO imstat::::casa ########################################## 2026-10-08 09:54:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:54:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:54:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:54:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:54:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:54:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:54:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:54:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:54:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:54:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:54:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:54:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:54:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:54:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:54:34 INFO imstat:::: Values --- 2026-10-08 09:54:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:54:34 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:54:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:54:34 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-10-08 09:54:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:54:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 09:54:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:54:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-08 09:54:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:54:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:54:34 INFO imstat:::: Statistics --- 2026-10-08 09:54:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:54:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:54:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:54:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:54:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-10-08 09:54:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-10-08 09:54:34 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-10-08 09:54:34 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-10-08 09:54:34 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-10-08 09:54:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:54:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:54:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:54:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:54:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:54:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:54:34 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 2026-10-08 09:54:34 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:54:33.952520 End time: 2026-10-08 09:54:33.979615 2026-10-08 09:54:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:54:34 INFO imstat::::casa ########################################## 2026-10-08 09:54:34 INFO phaseshift::::casa ########################################## 2026-10-08 09:54:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:54:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40.100000528deg' ) 2026-10-08 09:54:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:54:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:54:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:54:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:54:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:54:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:54:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:54:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:54:34 INFO MSTransformManager::open Select data 2026-10-08 09:54:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:54:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:54:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40.100000528deg' successfully parsed 2026-10-08 09:54:38 INFO phaseshift::::casa Shift phase center 2026-10-08 09:54:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:54:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:54:33.996521 End time: 2026-10-08 09:54:39.280702 2026-10-08 09:54:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:54:39 INFO phaseshift::::casa ########################################## 2026-10-08 09:54:39 INFO tclean::::casa ########################################## 2026-10-08 09:54:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:54:39 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:54:39 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:54:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:54:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:54:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:54:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:54:40 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:54:40 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:54:40 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:54:40 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:54:40 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:54:40 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:54:40 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:54:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:54:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020324 2026-10-08 09:54:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:54:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:54:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:54:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:54:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:54:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:54:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:54:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:54:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:54:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:54:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:54:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:54:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:54:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:54:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:54:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:54:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:54:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:54:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:54:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:54:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:54:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:54:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:54:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:54:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:54:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:54:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:54:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:54:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:54:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:54:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:54:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:54:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:54:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:54:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:54:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:55:00 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:54:39.333807 End time: 2026-10-08 09:54:59.540167 2026-10-08 09:55:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:55:00 INFO tclean::::casa ########################################## 2026-10-08 09:55:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:55:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:55:00 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) 2026-10-08 09:55:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:55:00 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:55:00 2026****** 2026-10-08 09:55:00 INFO ImageFitter::fit+ 2026-10-08 09:55:00 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:55:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:55:00 INFO ImageFitter::fit+ --- region: 2026-10-08 09:55:00 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:55:00 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:55:00 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:55:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:55:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:55:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:55:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:55:00 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) 2026-10-08 09:55:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:55:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:55:00 INFO imstat::::casa ########################################## 2026-10-08 09:55:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:55:00 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 ) 2026-10-08 09:55:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:55:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:55:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:55:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:55:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:55:00 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) 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:55:00 INFO imstat:::: Values --- 2026-10-08 09:55:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:55:00 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:55:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:55:00 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-08 09:55:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:55:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:55:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:55:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-08 09:55:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:55:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:55:00 INFO imstat:::: Statistics --- 2026-10-08 09:55:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:55:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:55:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:55:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:55:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-08 09:55:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-10-08 09:55:00 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-10-08 09:55:00 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-10-08 09:55:00 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:55:00 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779537e-05 4.999996e+00 2026-10-08 09:55:00 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:54:59.621857 End time: 2026-10-08 09:54:59.650346 2026-10-08 09:55:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:55:00 INFO imstat::::casa ########################################## 2026-10-08 09:55:00 INFO phaseshift::::casa ########################################## 2026-10-08 09:55:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:55:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 0.699877039rad' ) 2026-10-08 09:55:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:55:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:55:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:55:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:55:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:55:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:55:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:55:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:55:00 INFO MSTransformManager::open Select data 2026-10-08 09:55:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:55:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:55:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 0.699877039rad' successfully parsed 2026-10-08 09:55:04 INFO phaseshift::::casa Shift phase center 2026-10-08 09:55:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:55:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:54:59.667757 End time: 2026-10-08 09:55:05.566560 2026-10-08 09:55:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:55:06 INFO phaseshift::::casa ########################################## 2026-10-08 09:55:06 INFO tclean::::casa ########################################## 2026-10-08 09:55:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:55:06 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:55:06 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:55:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:55:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:55:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:55:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:55:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:55:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:55:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:55:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:55:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:55:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:55:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:55:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:55:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01998 2026-10-08 09:55:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:55:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:55:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:55:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:55:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:55:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:55:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:55:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:55:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:55:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:55:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:55:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:55:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:55:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:55:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:55:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:55:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:55:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:55:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:55:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:55:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:55:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:55:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:55:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:55:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:55:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:55:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:55:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:55:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:55:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:55:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:55:20 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:55:20 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:55:20 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:55:21 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:55:22 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:55:25 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:55:05.617180 End time: 2026-10-08 09:55:24.564356 2026-10-08 09:55:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:55:25 INFO tclean::::casa ########################################## 2026-10-08 09:55:25 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:55:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:55:25 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:55:25 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:55:25 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:55:25 2026****** 2026-10-08 09:55:25 INFO ImageFitter::fit+ 2026-10-08 09:55:25 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:55:25 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:55:25 INFO ImageFitter::fit+ --- region: 2026-10-08 09:55:25 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:55:25 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:55:25 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:55:25 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:55:25 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:55:25 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:55:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:55:25 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 09:55:25 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:55:25 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:55:25 INFO imstat::::casa ########################################## 2026-10-08 09:55:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:55:25 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:55:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:55:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:55:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:55:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:55:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:55:25 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:55:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:55:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:55:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:55:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:55:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:55:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:55:25 INFO imstat:::: Values --- 2026-10-08 09:55:25 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:55:25 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:55:25 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:55:25 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-10-08 09:55:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:55:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:55:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:55:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-08 09:55:25 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:55:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:55:25 INFO imstat:::: Statistics --- 2026-10-08 09:55:25 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:55:25 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:55:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:55:25 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:55:25 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-10-08 09:55:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-10-08 09:55:25 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-10-08 09:55:25 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-08 09:55:25 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-10-08 09:55:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:55:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:55:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:55:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:55:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:55:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:55:25 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 2026-10-08 09:55:25 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:55:24.645978 End time: 2026-10-08 09:55:24.672774 2026-10-08 09:55:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:55:25 INFO imstat::::casa ########################################## 2026-10-08 09:55:25 INFO phaseshift::::casa ########################################## 2026-10-08 09:55:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:55:25 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40d06m0.0019' ) 2026-10-08 09:55:25 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:55:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:55:25 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:55:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:55:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:55:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:55:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:55:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:55:25 INFO MSTransformManager::open Select data 2026-10-08 09:55:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:55:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:55:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40d06m0.0019' successfully parsed 2026-10-08 09:55:29 INFO phaseshift::::casa Shift phase center 2026-10-08 09:55:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:55:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:55:24.689504 End time: 2026-10-08 09:55:30.307685 2026-10-08 09:55:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:55:30 INFO phaseshift::::casa ########################################## 2026-10-08 09:55:30 INFO tclean::::casa ########################################## 2026-10-08 09:55:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:55:30 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:55:30 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:55:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:55:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:55:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:55:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:55:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:55:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:55:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:55:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:55:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:55:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:55:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:55:31 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:55:31 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.016521 2026-10-08 09:55:31 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:55:31 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:55:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:55:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:55:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:55:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:55:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:55:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:55:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:55:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:55:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:55:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:55:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:55:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:55:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:55:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:55:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:55:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:55:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:55:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:55:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:55:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:55:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:55:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:55:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:55:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:55:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:55:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:55:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:55:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:55:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:55:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:55:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:55:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:55:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:55:41 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:55:42 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:55:30.346371 End time: 2026-10-08 09:55:42.117398 2026-10-08 09:55:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:55:42 INFO tclean::::casa ########################################## 2026-10-08 09:55:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:55:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:55:42 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) 2026-10-08 09:55:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:55:42 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:55:42 2026****** 2026-10-08 09:55:42 INFO ImageFitter::fit+ 2026-10-08 09:55:42 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:55:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:55:42 INFO ImageFitter::fit+ --- region: 2026-10-08 09:55:42 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:55:42 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:55:42 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:55:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:55:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:55:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:55:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:55:42 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) 2026-10-08 09:55:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:55:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:55:42 INFO imstat::::casa ########################################## 2026-10-08 09:55:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:55:42 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 ) 2026-10-08 09:55:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:55:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:55:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:55:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:55:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:55:42 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) 2026-10-08 09:55:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:55:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:55:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:55:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:55:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:55:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:55:42 INFO imstat:::: Values --- 2026-10-08 09:55:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:55:42 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:55:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:55:42 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-08 09:55:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:55:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:55:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:55:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-08 09:55:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:55:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:55:42 INFO imstat:::: Statistics --- 2026-10-08 09:55:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:55:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:55:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:55:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:55:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-10-08 09:55:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-10-08 09:55:42 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-10-08 09:55:42 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-10-08 09:55:42 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-10-08 09:55:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:55:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:55:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:55:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:55:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:55:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:55:42 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 2026-10-08 09:55:42 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:55:42.192934 End time: 2026-10-08 09:55:42.225449 2026-10-08 09:55:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:55:42 INFO imstat::::casa ########################################## 2026-10-08 09:55:42 INFO phaseshift::::casa ########################################## 2026-10-08 09:55:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:55:42 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 19:53:49.9980 02:40:24.0001' ) 2026-10-08 09:55:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:55:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:55:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:55:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:55:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:55:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:55:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:55:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:55:42 INFO MSTransformManager::open Select data 2026-10-08 09:55:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:55:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-08 09:55:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 02:40:24.0001' successfully parsed 2026-10-08 09:55:45 INFO phaseshift::::casa Shift phase center 2026-10-08 09:55:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:55:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:55:42.241837 End time: 2026-10-08 09:55:46.132327 2026-10-08 09:55:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:55:46 INFO phaseshift::::casa ########################################## 2026-10-08 09:55:46 INFO tclean::::casa ########################################## 2026-10-08 09:55:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:55:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:55:46 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:55:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:55:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:55:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:55:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:55:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:55:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:55:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:55:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:55:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:55:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:55:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:55:48 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:55:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027586 2026-10-08 09:55:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:55:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:55:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:55:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:55:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:55:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:55:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:55:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:55:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:55:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:55:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:55:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:55:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:55:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:55:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:55:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:55:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:55:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:55:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:55:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:55:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:55:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:55:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:55:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:55:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:55:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:55:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:55:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:55:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:55:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:56:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:56:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:56:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:56:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:56:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:56:02 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:56:05 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:55:46.188481 End time: 2026-10-08 09:56:05.000287 2026-10-08 09:56:05 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:56:05 INFO tclean::::casa ########################################## 2026-10-08 09:56:05 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:56:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:56:05 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) 2026-10-08 09:56:05 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:56:05 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:56:05 2026****** 2026-10-08 09:56:05 INFO ImageFitter::fit+ 2026-10-08 09:56:05 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:56:05 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:56:05 INFO ImageFitter::fit+ --- region: 2026-10-08 09:56:05 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:56:05 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:56:05 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:56:05 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:56:05 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:56:05 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:56:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:56:05 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) 2026-10-08 09:56:05 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:56:05 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:56:05 INFO imstat::::casa ########################################## 2026-10-08 09:56:05 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:56:05 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 ) 2026-10-08 09:56:05 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:56:05 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:56:05 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:56:05 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:56:05 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:56:05 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) 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:56:05 INFO imstat:::: Values --- 2026-10-08 09:56:05 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:56:05 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:56:05 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:56:05 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-10-08 09:56:05 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:56:05 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 09:56:05 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:56:05 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-08 09:56:05 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:56:05 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:56:05 INFO imstat:::: Statistics --- 2026-10-08 09:56:05 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:56:05 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:56:05 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:56:05 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:56:05 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-10-08 09:56:05 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-10-08 09:56:05 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-10-08 09:56:05 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-10-08 09:56:05 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:56:05 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-10-08 09:56:05 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:56:05.083749 End time: 2026-10-08 09:56:05.112060 2026-10-08 09:56:05 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:56:05 INFO imstat::::casa ########################################## 2026-10-08 09:56:05 INFO phaseshift::::casa ########################################## 2026-10-08 09:56:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:56:05 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40.100000528deg' ) 2026-10-08 09:56:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:56:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:56:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:56:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:56:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:56:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:56:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:56:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:56:05 INFO MSTransformManager::open Select data 2026-10-08 09:56:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:56:09 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:56:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40.100000528deg' successfully parsed 2026-10-08 09:56:09 INFO phaseshift::::casa Shift phase center 2026-10-08 09:56:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:56:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:56:05.129139 End time: 2026-10-08 09:56:11.327052 2026-10-08 09:56:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:56:11 INFO phaseshift::::casa ########################################## 2026-10-08 09:56:11 INFO tclean::::casa ########################################## 2026-10-08 09:56:11 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:56:11 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:56:11 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:56:11 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:56:11 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:56:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:56:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:56:12 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:56:12 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:56:12 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:56:12 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:56:12 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:56:12 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:56:12 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:56:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:56:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025708 2026-10-08 09:56:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:56:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:56:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:56:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:56:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:56:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:56:16 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:56:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:56:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:56:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:56:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:56:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:56:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:56:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:56:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:56:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:56:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:56:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:56:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:56:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:56:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:56:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:56:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:56:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:56:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:56:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:56:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:56:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:56:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:56:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:56:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:56:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:56:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:56:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:56:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:56:27 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:56:28 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:56:11.387301 End time: 2026-10-08 09:56:28.306388 2026-10-08 09:56:28 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:56:28 INFO tclean::::casa ########################################## 2026-10-08 09:56:28 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:56:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:56:28 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) 2026-10-08 09:56:28 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:56:28 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:56:28 2026****** 2026-10-08 09:56:28 INFO ImageFitter::fit+ 2026-10-08 09:56:28 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:56:28 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:56:28 INFO ImageFitter::fit+ --- region: 2026-10-08 09:56:28 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:56:28 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:56:28 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:56:28 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:56:28 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:56:28 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:56:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:56:28 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) 2026-10-08 09:56:28 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:56:28 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:56:28 INFO imstat::::casa ########################################## 2026-10-08 09:56:28 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:56:28 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:56:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:56:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:56:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:56:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:56:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:56:28 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:56:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:56:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:56:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:56:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:56:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:56:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:56:28 INFO imstat:::: Values --- 2026-10-08 09:56:28 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:56:28 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:56:28 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:56:28 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-08 09:56:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:56:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:56:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:56:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-08 09:56:28 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:56:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:56:28 INFO imstat:::: Statistics --- 2026-10-08 09:56:28 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:56:28 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:56:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:56:28 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:56:28 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-08 09:56:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-10-08 09:56:28 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-10-08 09:56:28 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-10-08 09:56:28 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-10-08 09:56:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:56:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:56:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:56:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:56:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:56:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:56:28 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 2026-10-08 09:56:28 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:56:28.379250 End time: 2026-10-08 09:56:28.405911 2026-10-08 09:56:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:56:28 INFO imstat::::casa ########################################## 2026-10-08 09:56:28 INFO phaseshift::::casa ########################################## 2026-10-08 09:56:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:56:28 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 0.699877039rad' ) 2026-10-08 09:56:28 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:56:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:56:28 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:56:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:56:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:56:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:56:28 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:56:28 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:56:28 INFO MSTransformManager::open Select data 2026-10-08 09:56:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:56:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:56:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 0.699877039rad' successfully parsed 2026-10-08 09:56:33 INFO phaseshift::::casa Shift phase center 2026-10-08 09:56:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:56:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:56:28.422608 End time: 2026-10-08 09:56:34.777382 2026-10-08 09:56:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:56:35 INFO phaseshift::::casa ########################################## 2026-10-08 09:56:35 INFO tclean::::casa ########################################## 2026-10-08 09:56:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:56:35 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:56:35 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:56:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:56:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:56:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:56:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:56:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:56:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:56:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:56:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:56:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:56:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:56:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:56:37 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:56:37 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027116 2026-10-08 09:56:37 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:56:37 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:56:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:56:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:56:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:56:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:56:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:56:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:56:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:56:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:56:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:56:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:56:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:56:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:56:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:56:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:56:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:56:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:56:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:56:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:56:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:56:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:56:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:56:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:56:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:56:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:56:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:56:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:56:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:56:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:56:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:56:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:56:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:56:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:56:49 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:56:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:56:51 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:56:34.831438 End time: 2026-10-08 09:56:51.490590 2026-10-08 09:56:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:56:51 INFO tclean::::casa ########################################## 2026-10-08 09:56:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:56:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:56:52 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) 2026-10-08 09:56:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:56:52 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:56:52 2026****** 2026-10-08 09:56:52 INFO ImageFitter::fit+ 2026-10-08 09:56:52 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:56:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:56:52 INFO ImageFitter::fit+ --- region: 2026-10-08 09:56:52 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:56:52 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:56:52 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:56:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:56:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:56:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:56:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:56:52 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) 2026-10-08 09:56:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:56:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:56:52 INFO imstat::::casa ########################################## 2026-10-08 09:56:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:56:52 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 ) 2026-10-08 09:56:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:56:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:56:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:56:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:56:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:56:52 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) 2026-10-08 09:56:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:56:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:56:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:56:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:56:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:56:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:56:52 INFO imstat:::: Values --- 2026-10-08 09:56:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:56:52 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:56:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:56:52 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-10-08 09:56:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:56:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:56:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:56:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-08 09:56:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:56:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:56:52 INFO imstat:::: Statistics --- 2026-10-08 09:56:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:56:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:56:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:56:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:56:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-10-08 09:56:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-10-08 09:56:52 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-10-08 09:56:52 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-08 09:56:52 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-10-08 09:56:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:56:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:56:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:56:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:56:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:56:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:56:52 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 2026-10-08 09:56:52 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:56:51.567311 End time: 2026-10-08 09:56:51.594317 2026-10-08 09:56:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:56:52 INFO imstat::::casa ########################################## 2026-10-08 09:56:52 INFO phaseshift::::casa ########################################## 2026-10-08 09:56:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:56:52 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 298.458325000deg 40d06m0.0019' ) 2026-10-08 09:56:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:56:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:56:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:56:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:56:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:56:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:56:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:56:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:56:52 INFO MSTransformManager::open Select data 2026-10-08 09:56:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:56:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:56:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40d06m0.0019' successfully parsed 2026-10-08 09:56:57 INFO phaseshift::::casa Shift phase center 2026-10-08 09:56:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:56:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:56:51.611513 End time: 2026-10-08 09:56:58.266171 2026-10-08 09:56:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:56:58 INFO phaseshift::::casa ########################################## 2026-10-08 09:56:58 INFO tclean::::casa ########################################## 2026-10-08 09:56:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:56:58 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:56:58 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:56:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:56:58 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:56:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:56:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:56:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:56:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:56:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:56:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:56:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:56:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:56:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:57:00 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:57:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024936 2026-10-08 09:57:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:57:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:57:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:57:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:57:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:57:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:57:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:57:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:57:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:57:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:57:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:57:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:57:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:57:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:57:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:57:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:57:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:57:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:57:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:57:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:57:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:57:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:57:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:57:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:57:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:57:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:57:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:57:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:57:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:57:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:57:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:57:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:57:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:57:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:57:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:57:08 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:57:10 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:56:58.323267 End time: 2026-10-08 09:57:09.586243 2026-10-08 09:57:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:57:10 INFO tclean::::casa ########################################## 2026-10-08 09:57:10 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:57:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:57:10 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:57:10 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:57:10 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:57:10 2026****** 2026-10-08 09:57:10 INFO ImageFitter::fit+ 2026-10-08 09:57:10 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:57:10 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:57:10 INFO ImageFitter::fit+ --- region: 2026-10-08 09:57:10 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:57:10 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:57:10 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:57:10 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:57:10 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:57:10 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:57:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:57:10 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 09:57:10 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:57:10 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:57:10 INFO imstat::::casa ########################################## 2026-10-08 09:57:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:57:10 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:57:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:57:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:57:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:57:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:57:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:57:10 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:57:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:57:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:57:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:57:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:57:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:57:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:57:10 INFO imstat:::: Values --- 2026-10-08 09:57:10 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:57:10 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:57:10 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:57:10 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-08 09:57:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:57:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:57:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:57:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-08 09:57:10 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:57:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:57:10 INFO imstat:::: Statistics --- 2026-10-08 09:57:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:57:10 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:57:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:57:10 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:57:10 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-10-08 09:57:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-10-08 09:57:10 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-10-08 09:57:10 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-10-08 09:57:10 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-10-08 09:57:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:57:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:57:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:57:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:57:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:57:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:57:10 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 2026-10-08 09:57:10 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:57:09.643587 End time: 2026-10-08 09:57:09.673736 2026-10-08 09:57:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:57:10 INFO imstat::::casa ########################################## 2026-10-08 09:57:10 INFO phaseshift::::casa ########################################## 2026-10-08 09:57:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:57:10 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 02:40:24.0001' ) 2026-10-08 09:57:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:57:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:57:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:57:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:57:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:57:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:57:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:57:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:57:10 INFO MSTransformManager::open Select data 2026-10-08 09:57:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:57:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-08 09:57:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 02:40:24.0001' successfully parsed 2026-10-08 09:57:13 INFO phaseshift::::casa Shift phase center 2026-10-08 09:57:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:57:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:57:09.686706 End time: 2026-10-08 09:57:13.758668 2026-10-08 09:57:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:57:14 INFO phaseshift::::casa ########################################## 2026-10-08 09:57:14 INFO tclean::::casa ########################################## 2026-10-08 09:57:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:57:14 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:57:14 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:57:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:57:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:57:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:57:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:57:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:57:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:57:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:57:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:57:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:57:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:57:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:57:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:57:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017435 2026-10-08 09:57:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:57:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:57:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:57:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:57:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:57:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:57:16 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:57:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:57:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:57:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:57:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:57:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:57:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:57:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:57:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:57:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:57:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:57:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:57:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:57:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:57:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:57:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:57:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:57:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:57:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:57:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:57:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:57:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:57:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:57:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:57:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:57:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:57:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:57:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:57:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:57:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:57:30 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:57:13.818658 End time: 2026-10-08 09:57:29.936966 2026-10-08 09:57:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:57:30 INFO tclean::::casa ########################################## 2026-10-08 09:57:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:57:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:57:30 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) 2026-10-08 09:57:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:57:30 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:57:30 2026****** 2026-10-08 09:57:30 INFO ImageFitter::fit+ 2026-10-08 09:57:30 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:57:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:57:30 INFO ImageFitter::fit+ --- region: 2026-10-08 09:57:30 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:57:30 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:57:30 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:57:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:57:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:57:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:57:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:57:30 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) 2026-10-08 09:57:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:57:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:57:30 INFO imstat::::casa ########################################## 2026-10-08 09:57:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:57:30 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 ) 2026-10-08 09:57:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:57:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:57:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:57:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:57:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:57:30 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) 2026-10-08 09:57:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:57:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:57:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:57:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:57:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:57:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:57:30 INFO imstat:::: Values --- 2026-10-08 09:57:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:57:30 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:57:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:57:30 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-10-08 09:57:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:57:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 09:57:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:57:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-08 09:57:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:57:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:57:30 INFO imstat:::: Statistics --- 2026-10-08 09:57:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:57:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:57:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:57:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:57:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-10-08 09:57:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-10-08 09:57:30 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-10-08 09:57:30 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-10-08 09:57:30 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-10-08 09:57:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:57:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:57:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:57:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:57:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:57:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:57:30 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 2026-10-08 09:57:30 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:57:30.009338 End time: 2026-10-08 09:57:30.035815 2026-10-08 09:57:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:57:30 INFO imstat::::casa ########################################## 2026-10-08 09:57:30 INFO phaseshift::::casa ########################################## 2026-10-08 09:57:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:57:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40.100000528deg' ) 2026-10-08 09:57:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:57:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:57:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:57:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:57:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:57:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:57:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:57:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:57:30 INFO MSTransformManager::open Select data 2026-10-08 09:57:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:57:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:57:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40.100000528deg' successfully parsed 2026-10-08 09:57:35 INFO phaseshift::::casa Shift phase center 2026-10-08 09:57:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:57:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:57:30.052353 End time: 2026-10-08 09:57:36.478282 2026-10-08 09:57:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:57:36 INFO phaseshift::::casa ########################################## 2026-10-08 09:57:37 INFO tclean::::casa ########################################## 2026-10-08 09:57:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:57:37 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:57:37 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:57:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:57:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:57:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:57:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:57:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:57:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:57:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:57:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:57:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:57:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:57:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:57:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:57:39 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027049 2026-10-08 09:57:39 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:57:39 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:57:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:57:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:57:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:57:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:57:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:57:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:57:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:57:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:57:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:57:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:57:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:57:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:57:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:57:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:57:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:57:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:57:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:57:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:57:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:57:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:57:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:57:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:57:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:57:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:57:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:57:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:57:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:57:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:57:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:57:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:57:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:57:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:57:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:57:51 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:57:52 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:57:36.531413 End time: 2026-10-08 09:57:52.430180 2026-10-08 09:57:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:57:52 INFO tclean::::casa ########################################## 2026-10-08 09:57:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:57:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:57:52 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) 2026-10-08 09:57:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:57:52 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:57:52 2026****** 2026-10-08 09:57:52 INFO ImageFitter::fit+ 2026-10-08 09:57:52 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:57:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:57:52 INFO ImageFitter::fit+ --- region: 2026-10-08 09:57:52 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:57:52 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:57:52 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:57:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:57:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:57:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:57:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:57:52 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) 2026-10-08 09:57:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:57:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:57:53 INFO imstat::::casa ########################################## 2026-10-08 09:57:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:57:53 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 ) 2026-10-08 09:57:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:57:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:57:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:57:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:57:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:57:53 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) 2026-10-08 09:57:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:57:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:57:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:57:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:57:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:57:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:57:53 INFO imstat:::: Values --- 2026-10-08 09:57:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:57:53 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:57:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:57:53 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-10-08 09:57:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:57:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:57:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:57:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-08 09:57:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:57:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:57:53 INFO imstat:::: Statistics --- 2026-10-08 09:57:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:57:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:57:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:57:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:57:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-08 09:57:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-10-08 09:57:53 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-10-08 09:57:53 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-10-08 09:57:53 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-10-08 09:57:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:57:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:57:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:57:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:57:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:57:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:57:53 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 2026-10-08 09:57:53 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:57:52.509515 End time: 2026-10-08 09:57:52.537198 2026-10-08 09:57:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:57:53 INFO imstat::::casa ########################################## 2026-10-08 09:57:53 INFO phaseshift::::casa ########################################## 2026-10-08 09:57:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:57:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 0.699877039rad' ) 2026-10-08 09:57:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:57:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:57:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:57:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:57:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:57:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:57:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:57:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:57:53 INFO MSTransformManager::open Select data 2026-10-08 09:57:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:57:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:57:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 0.699877039rad' successfully parsed 2026-10-08 09:57:55 INFO phaseshift::::casa Shift phase center 2026-10-08 09:57:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:57:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:57:52.554600 End time: 2026-10-08 09:57:55.860697 2026-10-08 09:57:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:57:56 INFO phaseshift::::casa ########################################## 2026-10-08 09:57:56 INFO tclean::::casa ########################################## 2026-10-08 09:57:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:57:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:57:56 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:57:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:57:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:57:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:57:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:57:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:57:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:57:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:57:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:57:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:57:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:57:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:57:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:57:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026798 2026-10-08 09:57:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:57:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:57:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:57:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:58:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:58:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:58:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:58:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:58:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:58:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:58:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:58:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:58:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:58:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:58:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:58:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:58:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:58:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:58:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:58:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:58:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:58:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:58:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:58:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:58:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:58:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:58:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:58:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:58:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:58:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:58:11 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:58:11 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:58:13 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:57:55.900369 End time: 2026-10-08 09:58:12.996925 2026-10-08 09:58:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:58:13 INFO tclean::::casa ########################################## 2026-10-08 09:58:13 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:58:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:58:13 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:58:13 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:58:13 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:58:13 2026****** 2026-10-08 09:58:13 INFO ImageFitter::fit+ 2026-10-08 09:58:13 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:58:13 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:58:13 INFO ImageFitter::fit+ --- region: 2026-10-08 09:58:13 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:58:13 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:58:13 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:58:13 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:58:13 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:58:13 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:58:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:58:13 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 09:58:13 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:58:13 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:58:13 INFO imstat::::casa ########################################## 2026-10-08 09:58:13 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:58:13 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:58:13 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:58:13 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:58:13 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:58:13 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:58:13 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:58:13 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:58:13 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:58:13 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:58:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:58:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:58:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:58:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:58:13 INFO imstat:::: Values --- 2026-10-08 09:58:13 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:58:13 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:58:13 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:58:13 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-10-08 09:58:13 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:58:13 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:58:13 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:58:13 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-08 09:58:13 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:58:13 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:58:13 INFO imstat:::: Statistics --- 2026-10-08 09:58:13 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:58:13 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:58:13 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:58:13 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:58:13 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-10-08 09:58:13 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-10-08 09:58:13 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-10-08 09:58:13 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-08 09:58:13 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-10-08 09:58:13 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:58:13 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:58:13 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:58:13 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:58:13 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:58:13 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:58:13 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 2026-10-08 09:58:13 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:58:13.073870 End time: 2026-10-08 09:58:13.101492 2026-10-08 09:58:13 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:58:13 INFO imstat::::casa ########################################## 2026-10-08 09:58:13 INFO phaseshift::::casa ########################################## 2026-10-08 09:58:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:58:13 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40d06m0.0019' ) 2026-10-08 09:58:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:58:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:58:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:58:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:58:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:58:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:58:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:58:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:58:13 INFO MSTransformManager::open Select data 2026-10-08 09:58:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:58:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:58:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40d06m0.0019' successfully parsed 2026-10-08 09:58:19 INFO phaseshift::::casa Shift phase center 2026-10-08 09:58:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:58:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:58:13.118695 End time: 2026-10-08 09:58:21.147420 2026-10-08 09:58:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:58:21 INFO phaseshift::::casa ########################################## 2026-10-08 09:58:21 INFO tclean::::casa ########################################## 2026-10-08 09:58:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:58:21 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:58:21 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:58:21 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:58:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:58:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:58:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:58:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:58:21 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:58:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:58:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:58:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:58:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:58:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:58:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:58:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027139 2026-10-08 09:58:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:58:24 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:58:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:58:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:58:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:58:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:58:26 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:58:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:58:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:58:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:58:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:58:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:58:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:58:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:58:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:58:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:58:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:58:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:58:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:58:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:58:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:58:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:58:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:58:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:58:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:58:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:58:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:58:34 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:58:34 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:58:34 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:58:35 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:58:35 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:58:36 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:58:21.204097 End time: 2026-10-08 09:58:36.413178 2026-10-08 09:58:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:58:36 INFO tclean::::casa ########################################## 2026-10-08 09:58:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:58:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:58:36 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) 2026-10-08 09:58:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:58:36 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:58:36 2026****** 2026-10-08 09:58:36 INFO ImageFitter::fit+ 2026-10-08 09:58:36 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:58:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:58:36 INFO ImageFitter::fit+ --- region: 2026-10-08 09:58:36 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:58:36 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:58:36 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:58:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:58:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:58:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:58:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:58:36 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) 2026-10-08 09:58:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:58:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:58:36 INFO imstat::::casa ########################################## 2026-10-08 09:58:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:58:36 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 ) 2026-10-08 09:58:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:58:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:58:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:58:37 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:58:37 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:58:37 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:58:37 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:58:37 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:58:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:58:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:58:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:58:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:58:37 INFO imstat:::: Values --- 2026-10-08 09:58:37 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:58:37 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:58:37 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:58:37 INFO imstat:::: -- minimum value [min]: -7.77984e-05 Jy/beam 2026-10-08 09:58:37 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:58:37 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:58:37 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:58:37 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-08 09:58:37 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:58:37 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:58:37 INFO imstat:::: Statistics --- 2026-10-08 09:58:37 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:58:37 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:58:37 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:58:37 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:58:37 INFO imstat:::: -- Median of the pixel values [median]: -1.86704e-05 Jy/beam 2026-10-08 09:58:37 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7365e-05 Jy/beam 2026-10-08 09:58:37 INFO imstat:::: -- IQR [quartile]: 3.56348e-05 Jy/beam 2026-10-08 09:58:37 INFO imstat:::: -- First quartile [q1]: -3.45131e-05 Jy/beam 2026-10-08 09:58:37 INFO imstat:::: -- Third quartile [q3]: 1.12172e-06 Jy/beam 2026-10-08 09:58:37 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:58:37 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:58:37 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:58:37 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:58:37 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:58:37 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:58:37 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 2026-10-08 09:58:37 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:58:36.490318 End time: 2026-10-08 09:58:36.517101 2026-10-08 09:58:37 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:58:37 INFO imstat::::casa ########################################## 2026-10-08 09:58:37 INFO phaseshift::::casa ########################################## 2026-10-08 09:58:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:58:37 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 02:40:24.0001' ) 2026-10-08 09:58:37 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:58:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:58:37 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:58:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:58:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:58:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:58:37 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:58:37 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:58:37 INFO MSTransformManager::open Select data 2026-10-08 09:58:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:58:39 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 ".". 2026-10-08 09:58:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 02:40:24.0001' successfully parsed 2026-10-08 09:58:39 INFO phaseshift::::casa Shift phase center 2026-10-08 09:58:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:58:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:58:36.534014 End time: 2026-10-08 09:58:39.502046 2026-10-08 09:58:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:58:40 INFO phaseshift::::casa ########################################## 2026-10-08 09:58:40 INFO tclean::::casa ########################################## 2026-10-08 09:58:40 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:58:40 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:58:40 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:58:40 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:58:40 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:58:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:58:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:58:40 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:58:40 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:58:40 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:58:40 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:58:40 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:58:40 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:58:40 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:58:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:58:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027365 2026-10-08 09:58:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:58:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:58:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:58:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:58:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:58:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:58:44 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:58:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:58:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:58:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:58:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:58:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:58:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:58:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:58:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:58:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:58:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:58:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:58:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:58:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:58:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:58:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:58:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:58:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:58:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:58:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:58:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:58:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:58:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:58:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:58:48 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:58:48 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:58:49 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:58:39.541390 End time: 2026-10-08 09:58:49.196914 2026-10-08 09:58:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:58:49 INFO tclean::::casa ########################################## 2026-10-08 09:58:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:58:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:58:49 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) 2026-10-08 09:58:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:58:49 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:58:49 2026****** 2026-10-08 09:58:49 INFO ImageFitter::fit+ 2026-10-08 09:58:49 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:58:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:58:49 INFO ImageFitter::fit+ --- region: 2026-10-08 09:58:49 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:58:49 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:58:49 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:58:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:58:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:58:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:58:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:58:49 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) 2026-10-08 09:58:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116894 Jy 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126508 Jy 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:58:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:58:49 INFO imstat::::casa ########################################## 2026-10-08 09:58:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:58:49 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 ) 2026-10-08 09:58:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:58:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:58:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:58:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:58:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:58:49 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) 2026-10-08 09:58:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:58:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:58:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:58:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:58:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:58:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:58:49 INFO imstat:::: Values --- 2026-10-08 09:58:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:58:49 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:58:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:58:49 INFO imstat:::: -- minimum value [min]: -7.78076e-05 Jy/beam 2026-10-08 09:58:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:58:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 09:58:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:58:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-10-08 09:58:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:58:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:58:49 INFO imstat:::: Statistics --- 2026-10-08 09:58:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:58:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:58:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:58:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:58:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86848e-05 Jy/beam 2026-10-08 09:58:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73951e-05 Jy/beam 2026-10-08 09:58:49 INFO imstat:::: -- IQR [quartile]: 3.56676e-05 Jy/beam 2026-10-08 09:58:49 INFO imstat:::: -- First quartile [q1]: -3.45186e-05 Jy/beam 2026-10-08 09:58:49 INFO imstat:::: -- Third quartile [q3]: 1.14894e-06 Jy/beam 2026-10-08 09:58:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:58:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:58:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:58:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:58:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:58:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:58:49 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 2026-10-08 09:58:49 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:58:49.280602 End time: 2026-10-08 09:58:49.309769 2026-10-08 09:58:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:58:49 INFO imstat::::casa ########################################## 2026-10-08 09:58:49 INFO phaseshift::::casa ########################################## 2026-10-08 09:58:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:58:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40.100000528deg' ) 2026-10-08 09:58:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:58:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:58:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:58:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:58:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:58:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:58:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:58:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:58:49 INFO MSTransformManager::open Select data 2026-10-08 09:58:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:58:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:58:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40.100000528deg' successfully parsed 2026-10-08 09:58:53 INFO phaseshift::::casa Shift phase center 2026-10-08 09:58:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:58:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:58:49.327858 End time: 2026-10-08 09:58:54.089838 2026-10-08 09:58:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:58:54 INFO phaseshift::::casa ########################################## 2026-10-08 09:58:54 INFO tclean::::casa ########################################## 2026-10-08 09:58:54 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:58:54 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:58:54 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:58:54 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:58:54 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:58:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:58:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:58:54 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:58:54 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:58:54 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:58:54 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:58:54 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:58:54 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:58:54 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:58:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:58:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024499 2026-10-08 09:58:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:58:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:58:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:58:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:58:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:58:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:58:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:58:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:58:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:59:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:59:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:59:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:59:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:59:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:59:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:59:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:59:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:59:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:59:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:59:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:59:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:59:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:59:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:59:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:59:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:59:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:59:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:59:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:59:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:59:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:59:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:59:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:59:08 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:59:10 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:58:54.149413 End time: 2026-10-08 09:59:09.586081 2026-10-08 09:59:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:59:10 INFO tclean::::casa ########################################## 2026-10-08 09:59:10 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:59:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:59:10 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:59:10 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:59:10 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:59:10 2026****** 2026-10-08 09:59:10 INFO ImageFitter::fit+ 2026-10-08 09:59:10 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:59:10 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:59:10 INFO ImageFitter::fit+ --- region: 2026-10-08 09:59:10 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:59:10 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:59:10 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:59:10 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:59:10 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:59:10 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:59:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:59:10 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 09:59:10 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116882 Jy 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:59:10 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:59:10 INFO imstat::::casa ########################################## 2026-10-08 09:59:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:59:10 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:59:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:59:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:59:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:59:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:59:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:59:10 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:59:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:59:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:59:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:59:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:59:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:59:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:59:10 INFO imstat:::: Values --- 2026-10-08 09:59:10 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:59:10 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:59:10 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:59:10 INFO imstat:::: -- minimum value [min]: -7.77982e-05 Jy/beam 2026-10-08 09:59:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:59:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:59:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:59:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-08 09:59:10 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:59:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:59:10 INFO imstat:::: Statistics --- 2026-10-08 09:59:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:59:10 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:59:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:59:10 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:59:10 INFO imstat:::: -- Median of the pixel values [median]: -1.86711e-05 Jy/beam 2026-10-08 09:59:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73646e-05 Jy/beam 2026-10-08 09:59:10 INFO imstat:::: -- IQR [quartile]: 3.56367e-05 Jy/beam 2026-10-08 09:59:10 INFO imstat:::: -- First quartile [q1]: -3.45138e-05 Jy/beam 2026-10-08 09:59:10 INFO imstat:::: -- Third quartile [q3]: 1.12291e-06 Jy/beam 2026-10-08 09:59:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:59:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:59:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:59:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:59:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:59:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:59:10 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 2026-10-08 09:59:10 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:59:09.647257 End time: 2026-10-08 09:59:09.677108 2026-10-08 09:59:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:59:10 INFO imstat::::casa ########################################## 2026-10-08 09:59:10 INFO phaseshift::::casa ########################################## 2026-10-08 09:59:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:59:10 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 0.699877039rad' ) 2026-10-08 09:59:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:59:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:59:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:59:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:59:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:59:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:59:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:59:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:59:10 INFO MSTransformManager::open Select data 2026-10-08 09:59:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:59:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:59:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 0.699877039rad' successfully parsed 2026-10-08 09:59:13 INFO phaseshift::::casa Shift phase center 2026-10-08 09:59:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:59:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:59:09.690470 End time: 2026-10-08 09:59:13.868034 2026-10-08 09:59:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:59:14 INFO phaseshift::::casa ########################################## 2026-10-08 09:59:14 INFO tclean::::casa ########################################## 2026-10-08 09:59:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:59:14 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:59:14 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:59:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:59:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:59:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:59:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:59:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:59:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:59:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:59:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:59:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:59:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:59:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:59:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:59:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027739 2026-10-08 09:59:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:59:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:59:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:59:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:59:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:59:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:59:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:59:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:59:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:59:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:59:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:59:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:59:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:59:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:59:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:59:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:59:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:59:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374443277716637, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:59:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:59:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:59:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:59:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:59:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852561634033918, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 09:59:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:59:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:59:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:59:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:59:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:59:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:59:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:59:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:59:23 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:59:24 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:59:13.928318 End time: 2026-10-08 09:59:23.805240 2026-10-08 09:59:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:59:24 INFO tclean::::casa ########################################## 2026-10-08 09:59:24 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:59:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:59:24 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) 2026-10-08 09:59:24 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:59:24 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:59:24 2026****** 2026-10-08 09:59:24 INFO ImageFitter::fit+ 2026-10-08 09:59:24 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:59:24 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:59:24 INFO ImageFitter::fit+ --- region: 2026-10-08 09:59:24 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:59:24 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:59:24 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:59:24 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:59:24 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:59:24 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:59:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:59:24 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) 2026-10-08 09:59:24 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:59:24 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:59:24 INFO imstat::::casa ########################################## 2026-10-08 09:59:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:59:24 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 ) 2026-10-08 09:59:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:59:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:59:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:59:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:59:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:59:24 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) 2026-10-08 09:59:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:59:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:59:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:59:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:59:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:59:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:59:24 INFO imstat:::: Values --- 2026-10-08 09:59:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:59:24 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:59:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:59:24 INFO imstat:::: -- minimum value [min]: -7.77898e-05 Jy/beam 2026-10-08 09:59:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:59:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:59:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:59:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-10-08 09:59:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:59:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:59:24 INFO imstat:::: Statistics --- 2026-10-08 09:59:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:59:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:59:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:59:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:59:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86769e-05 Jy/beam 2026-10-08 09:59:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73662e-05 Jy/beam 2026-10-08 09:59:24 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-10-08 09:59:24 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-10-08 09:59:24 INFO imstat:::: -- Third quartile [q3]: 1.1187e-06 Jy/beam 2026-10-08 09:59:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:59:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:59:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:59:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:59:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:59:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:59:24 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 2026-10-08 09:59:24 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:59:23.851914 End time: 2026-10-08 09:59:23.871820 2026-10-08 09:59:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:59:24 INFO imstat::::casa ########################################## 2026-10-08 09:59:24 INFO phaseshift::::casa ########################################## 2026-10-08 09:59:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:59:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 +006d21m09.7433' ) 2026-10-08 09:59:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:59:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:59:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:59:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:59:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:59:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:59:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:59:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:59:24 INFO MSTransformManager::open Select data 2026-10-08 09:59:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:59:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 09:59:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 +006d21m09.7433' successfully parsed 2026-10-08 09:59:27 INFO phaseshift::::casa Shift phase center 2026-10-08 09:59:28 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:59:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:59:23.885386 End time: 2026-10-08 09:59:27.824889 2026-10-08 09:59:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:59:28 INFO phaseshift::::casa ########################################## 2026-10-08 09:59:28 INFO tclean::::casa ########################################## 2026-10-08 09:59:28 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:59:28 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:59:28 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:59:28 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:59:28 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:59:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:59:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:59:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:59:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:59:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:59:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:59:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:59:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:59:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:59:29 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:59:29 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.015319 2026-10-08 09:59:29 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:59:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:59:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:59:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:59:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:59:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:59:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:59:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:59:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:59:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:59:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:59:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:59:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:59:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:59:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:59:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:59:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:59:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:59:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:59:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:59:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:59:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:59:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:59:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:59:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:59:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 09:59:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 09:59:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 09:59:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 09:59:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 09:59:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:59:42 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 09:59:44 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:59:27.875519 End time: 2026-10-08 09:59:43.789037 2026-10-08 09:59:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 09:59:44 INFO tclean::::casa ########################################## 2026-10-08 09:59:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 09:59:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:59:44 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 09:59:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 09:59:44 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 09:59:44 2026****** 2026-10-08 09:59:44 INFO ImageFitter::fit+ 2026-10-08 09:59:44 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 09:59:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 09:59:44 INFO ImageFitter::fit+ --- region: 2026-10-08 09:59:44 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 09:59:44 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 09:59:44 INFO ImageFitter::fit+ --- mask: 2026-10-08 09:59:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 09:59:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 09:59:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 09:59:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:59:44 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 09:59:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 09:59:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 09:59:44 INFO imstat::::casa ########################################## 2026-10-08 09:59:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 09:59:44 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 09:59:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 09:59:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 09:59:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 09:59:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 09:59:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 09:59:44 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 09:59:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 09:59:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 09:59:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 09:59:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 09:59:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 09:59:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 09:59:44 INFO imstat:::: Values --- 2026-10-08 09:59:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 09:59:44 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 09:59:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 09:59:44 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-10-08 09:59:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 09:59:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 09:59:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 09:59:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 09:59:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 09:59:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 09:59:44 INFO imstat:::: Statistics --- 2026-10-08 09:59:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 09:59:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 09:59:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 09:59:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 09:59:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-10-08 09:59:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-10-08 09:59:44 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-10-08 09:59:44 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-10-08 09:59:44 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-10-08 09:59:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 09:59:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 09:59:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 09:59:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 09:59:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 09:59:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 09:59:44 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 2026-10-08 09:59:44 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 09:59:43.857679 End time: 2026-10-08 09:59:43.883109 2026-10-08 09:59:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 09:59:44 INFO imstat::::casa ########################################## 2026-10-08 09:59:44 INFO phaseshift::::casa ########################################## 2026-10-08 09:59:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 09:59:44 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 00:25:24.6496' ) 2026-10-08 09:59:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 09:59:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 09:59:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 09:59:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 09:59:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 09:59:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 09:59:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 09:59:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 09:59:44 INFO MSTransformManager::open Select data 2026-10-08 09:59:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 09:59:47 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 ".". 2026-10-08 09:59:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 00:25:24.6496' successfully parsed 2026-10-08 09:59:47 INFO phaseshift::::casa Shift phase center 2026-10-08 09:59:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 09:59:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 09:59:43.899331 End time: 2026-10-08 09:59:48.555937 2026-10-08 09:59:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 09:59:49 INFO phaseshift::::casa ########################################## 2026-10-08 09:59:49 INFO tclean::::casa ########################################## 2026-10-08 09:59:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 09:59:49 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 09:59:49 INFO tclean::::casa Verifying Input Parameters 2026-10-08 09:59:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 09:59:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 09:59:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:59:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 09:59:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 09:59:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 09:59:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 09:59:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 09:59:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 09:59:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 09:59:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 09:59:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 09:59:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027069 2026-10-08 09:59:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 09:59:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 09:59:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 09:59:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 09:59:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 09:59:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 09:59:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 09:59:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 09:59:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 09:59:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 09:59:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 09:59:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 09:59:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 09:59:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 09:59:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 09:59:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 09:59:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 09:59:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 09:59:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 09:59:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 09:59:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 09:59:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 09:59:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 09:59:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 09:59:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 09:59:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 09:59:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:00:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:00:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:00:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:00:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:00:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:00:01 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:00:03 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 09:59:48.615409 End time: 2026-10-08 10:00:02.713306 2026-10-08 10:00:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:00:03 INFO tclean::::casa ########################################## 2026-10-08 10:00:03 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:00:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:00:03 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) 2026-10-08 10:00:03 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:00:03 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:00:03 2026****** 2026-10-08 10:00:03 INFO ImageFitter::fit+ 2026-10-08 10:00:03 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:00:03 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:00:03 INFO ImageFitter::fit+ --- region: 2026-10-08 10:00:03 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:00:03 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:00:03 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:00:03 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:00:03 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:00:03 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:00:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:00:03 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) 2026-10-08 10:00:03 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:00:03 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:00:03 INFO imstat::::casa ########################################## 2026-10-08 10:00:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:00:03 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 ) 2026-10-08 10:00:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:00:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:00:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:00:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:00:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:00:03 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-08 10:00:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:00:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:00:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:00:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:00:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-08 10:00:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-08 10:00:03 INFO imstat:::: Values --- 2026-10-08 10:00:03 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:00:03 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:00:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:00:03 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-10-08 10:00:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:00:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:00:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:00:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:00:03 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:00:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:00:03 INFO imstat:::: Statistics --- 2026-10-08 10:00:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:00:03 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:00:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:00:03 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:00:03 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-10-08 10:00:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-10-08 10:00:03 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-10-08 10:00:03 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-10-08 10:00:03 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-10-08 10:00:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:00:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:00:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:00:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:00:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:00:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:00:03 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 2026-10-08 10:00:03 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:00:02.794505 End time: 2026-10-08 10:00:02.822591 2026-10-08 10:00:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:00:03 INFO imstat::::casa ########################################## 2026-10-08 10:00:03 INFO phaseshift::::casa ########################################## 2026-10-08 10:00:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:00:03 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 6.352706472deg' ) 2026-10-08 10:00:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:00:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:00:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:00:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:00:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:00:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:00:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:00:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:00:03 INFO MSTransformManager::open Select data 2026-10-08 10:00:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:00:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:00:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 6.352706472deg' successfully parsed 2026-10-08 10:00:05 INFO phaseshift::::casa Shift phase center 2026-10-08 10:00:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:00:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:00:02.840083 End time: 2026-10-08 10:00:07.052187 2026-10-08 10:00:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:00:07 INFO phaseshift::::casa ########################################## 2026-10-08 10:00:07 INFO tclean::::casa ########################################## 2026-10-08 10:00:07 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:00:07 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:00:07 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:00:07 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:00:07 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:00:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:00:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:00:07 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:00:07 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:00:07 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:00:07 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:00:07 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:00:07 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:00:07 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:00:08 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:00:08 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.0185 2026-10-08 10:00:08 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:00:08 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:00:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:00:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:00:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:00:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:00:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:00:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:00:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:00:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:00:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:00:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:00:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:00:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:00:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:00:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:00:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:00:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:00:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:00:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:00:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:00:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:00:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:00:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:00:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:00:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:00:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:00:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:00:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:00:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:00:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:00:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:00:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:00:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:00:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:00:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:00:28 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:00:07.106163 End time: 2026-10-08 10:00:27.935924 2026-10-08 10:00:28 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:00:28 INFO tclean::::casa ########################################## 2026-10-08 10:00:28 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:00:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:00:28 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) 2026-10-08 10:00:28 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:00:28 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:00:28 2026****** 2026-10-08 10:00:28 INFO ImageFitter::fit+ 2026-10-08 10:00:28 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:00:28 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:00:28 INFO ImageFitter::fit+ --- region: 2026-10-08 10:00:28 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:00:28 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:00:28 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:00:28 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:00:28 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:00:28 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:00:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:00:28 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) 2026-10-08 10:00:28 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:00:28 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:00:28 INFO imstat::::casa ########################################## 2026-10-08 10:00:28 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:00:28 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 10:00:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:00:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:00:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:00:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:00:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:00:28 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 10:00:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:00:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:00:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:00:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:00:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:00:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:00:28 INFO imstat:::: Values --- 2026-10-08 10:00:28 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:00:28 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:00:28 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:00:28 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-10-08 10:00:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:00:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:00:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:00:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:00:28 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:00:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:00:28 INFO imstat:::: Statistics --- 2026-10-08 10:00:28 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:00:28 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:00:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:00:28 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:00:28 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-10-08 10:00:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-10-08 10:00:28 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-10-08 10:00:28 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-10-08 10:00:28 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-10-08 10:00:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:00:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:00:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:00:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:00:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:00:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:00:28 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 2026-10-08 10:00:28 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:00:28.007147 End time: 2026-10-08 10:00:28.032680 2026-10-08 10:00:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:00:28 INFO imstat::::casa ########################################## 2026-10-08 10:00:28 INFO phaseshift::::casa ########################################## 2026-10-08 10:00:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:00:28 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 0.110875644rad' ) 2026-10-08 10:00:28 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:00:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:00:28 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:00:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:00:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:00:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:00:28 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:00:28 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:00:28 INFO MSTransformManager::open Select data 2026-10-08 10:00:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:00:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:00:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 0.110875644rad' successfully parsed 2026-10-08 10:00:33 INFO phaseshift::::casa Shift phase center 2026-10-08 10:00:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:00:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:00:28.049150 End time: 2026-10-08 10:00:33.740555 2026-10-08 10:00:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:00:34 INFO phaseshift::::casa ########################################## 2026-10-08 10:00:34 INFO tclean::::casa ########################################## 2026-10-08 10:00:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:00:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:00:34 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:00:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:00:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:00:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:00:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:00:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:00:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:00:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:00:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:00:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:00:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:00:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:00:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:00:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023457 2026-10-08 10:00:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:00:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:00:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:00:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:00:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:00:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:00:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:00:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:00:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:00:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:00:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:00:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:00:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:00:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:00:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:00:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:00:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:00:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:00:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:00:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:00:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:00:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:00:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:00:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:00:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:00:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:00:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:00:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:00:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:00:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:00:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:00:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:00:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:00:42 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:00:43 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:00:43 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:00:44 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:00:33.800895 End time: 2026-10-08 10:00:44.043192 2026-10-08 10:00:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:00:44 INFO tclean::::casa ########################################## 2026-10-08 10:00:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:00:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:00:44 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 10:00:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:00:44 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:00:44 2026****** 2026-10-08 10:00:44 INFO ImageFitter::fit+ 2026-10-08 10:00:44 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:00:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:00:44 INFO ImageFitter::fit+ --- region: 2026-10-08 10:00:44 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:00:44 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:00:44 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:00:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:00:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:00:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:00:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:00:44 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 10:00:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:00:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:00:44 INFO imstat::::casa ########################################## 2026-10-08 10:00:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:00:44 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 10:00:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:00:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:00:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:00:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:00:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:00:44 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:00:44 INFO imstat:::: Values --- 2026-10-08 10:00:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:00:44 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:00:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:00:44 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-10-08 10:00:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:00:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 10:00:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:00:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-08 10:00:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:00:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:00:44 INFO imstat:::: Statistics --- 2026-10-08 10:00:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:00:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:00:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:00:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:00:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-08 10:00:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-10-08 10:00:44 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-10-08 10:00:44 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-10-08 10:00:44 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:00:44 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778491e-05 4.999996e+00 2026-10-08 10:00:44 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:00:44.116320 End time: 2026-10-08 10:00:44.143295 2026-10-08 10:00:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:00:44 INFO imstat::::casa ########################################## 2026-10-08 10:00:44 INFO phaseshift::::casa ########################################## 2026-10-08 10:00:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:00:44 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 +006d21m09.7433' ) 2026-10-08 10:00:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:00:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:00:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:00:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:00:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:00:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:00:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:00:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:00:44 INFO MSTransformManager::open Select data 2026-10-08 10:00:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:00:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:00:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 +006d21m09.7433' successfully parsed 2026-10-08 10:00:51 INFO phaseshift::::casa Shift phase center 2026-10-08 10:00:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:00:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:00:44.160739 End time: 2026-10-08 10:00:52.352827 2026-10-08 10:00:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:00:52 INFO phaseshift::::casa ########################################## 2026-10-08 10:00:52 INFO tclean::::casa ########################################## 2026-10-08 10:00:52 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:00:52 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:00:52 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:00:52 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:00:52 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:00:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:00:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:00:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:00:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:00:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:00:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:00:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:00:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:00:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:00:55 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:00:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025247 2026-10-08 10:00:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:00:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:00:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:00:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:00:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:00:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:00:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:00:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:00:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:01:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:01:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:01:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:01:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:01:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:01:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:01:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:01:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:01:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:01:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:01:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:01:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:01:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:01:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:01:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:01:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:01:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:01:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:01:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:01:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:01:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:01:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:01:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:01:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:01:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:01:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:01:10 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:01:12 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:00:52.412483 End time: 2026-10-08 10:01:12.174703 2026-10-08 10:01:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:01:12 INFO tclean::::casa ########################################## 2026-10-08 10:01:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:01:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:01:12 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) 2026-10-08 10:01:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:01:12 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:01:12 2026****** 2026-10-08 10:01:12 INFO ImageFitter::fit+ 2026-10-08 10:01:12 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:01:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:01:12 INFO ImageFitter::fit+ --- region: 2026-10-08 10:01:12 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:01:12 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:01:12 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:01:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:01:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:01:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:01:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:01:12 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) 2026-10-08 10:01:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:01:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:01:12 INFO imstat::::casa ########################################## 2026-10-08 10:01:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:01:12 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 ) 2026-10-08 10:01:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:01:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:01:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:01:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:01:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:01:12 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) 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:01:12 INFO imstat:::: Values --- 2026-10-08 10:01:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:01:12 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:01:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:01:12 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-10-08 10:01:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:01:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:01:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:01:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:01:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:01:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:01:12 INFO imstat:::: Statistics --- 2026-10-08 10:01:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:01:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:01:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:01:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:01:12 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-10-08 10:01:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-10-08 10:01:12 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-10-08 10:01:12 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-10-08 10:01:12 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:01:12 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777946e-05 4.999996e+00 2026-10-08 10:01:12 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:01:12.235375 End time: 2026-10-08 10:01:12.266157 2026-10-08 10:01:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:01:12 INFO imstat::::casa ########################################## 2026-10-08 10:01:12 INFO phaseshift::::casa ########################################## 2026-10-08 10:01:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:01:12 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 00:25:24.6496' ) 2026-10-08 10:01:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:01:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:01:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:01:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:01:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:01:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:01:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:01:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:01:12 INFO MSTransformManager::open Select data 2026-10-08 10:01:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:01:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-08 10:01:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 00:25:24.6496' successfully parsed 2026-10-08 10:01:17 INFO phaseshift::::casa Shift phase center 2026-10-08 10:01:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:01:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:01:12.283245 End time: 2026-10-08 10:01:18.935181 2026-10-08 10:01:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:01:19 INFO phaseshift::::casa ########################################## 2026-10-08 10:01:19 INFO tclean::::casa ########################################## 2026-10-08 10:01:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:01:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:01:19 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:01:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:01:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:01:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:01:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:01:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:01:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:01:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:01:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:01:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:01:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:01:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:01:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:01:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027449 2026-10-08 10:01:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:01:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:01:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:01:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:01:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:01:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:01:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:01:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:01:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:01:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:01:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:01:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:01:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:01:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:01:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:01:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:01:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:01:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:01:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:01:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:01:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:01:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:01:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:01:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:01:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:01:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:01:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:01:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:01:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:01:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:01:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:01:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:01:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:01:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:01:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:01:36 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:01:39 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:01:18.991916 End time: 2026-10-08 10:01:38.718900 2026-10-08 10:01:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:01:39 INFO tclean::::casa ########################################## 2026-10-08 10:01:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:01:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:01:39 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) 2026-10-08 10:01:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:01:39 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:01:39 2026****** 2026-10-08 10:01:39 INFO ImageFitter::fit+ 2026-10-08 10:01:39 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:01:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:01:39 INFO ImageFitter::fit+ --- region: 2026-10-08 10:01:39 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:01:39 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:01:39 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:01:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:01:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:01:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:01:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:01:39 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) 2026-10-08 10:01:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:01:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:01:39 INFO imstat::::casa ########################################## 2026-10-08 10:01:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:01:39 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 ) 2026-10-08 10:01:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:01:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:01:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:01:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:01:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:01:39 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-08 10:01:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:01:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:01:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:01:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:01:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-08 10:01:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-08 10:01:39 INFO imstat:::: Values --- 2026-10-08 10:01:39 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:01:39 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:01:39 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:01:39 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-10-08 10:01:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:01:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:01:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:01:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:01:39 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:01:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:01:39 INFO imstat:::: Statistics --- 2026-10-08 10:01:39 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:01:39 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:01:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:01:39 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:01:39 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-10-08 10:01:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-10-08 10:01:39 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-10-08 10:01:39 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-10-08 10:01:39 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-10-08 10:01:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:01:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:01:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:01:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:01:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:01:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:01:39 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 2026-10-08 10:01:39 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:01:38.797654 End time: 2026-10-08 10:01:38.824977 2026-10-08 10:01:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:01:39 INFO imstat::::casa ########################################## 2026-10-08 10:01:39 INFO phaseshift::::casa ########################################## 2026-10-08 10:01:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:01:39 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 6.352706472deg' ) 2026-10-08 10:01:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:01:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:01:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:01:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:01:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:01:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:01:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:01:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:01:39 INFO MSTransformManager::open Select data 2026-10-08 10:01:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:01:43 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:01:43 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 6.352706472deg' successfully parsed 2026-10-08 10:01:43 INFO phaseshift::::casa Shift phase center 2026-10-08 10:01:44 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:01:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:01:38.842106 End time: 2026-10-08 10:01:44.472495 2026-10-08 10:01:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:01:44 INFO phaseshift::::casa ########################################## 2026-10-08 10:01:45 INFO tclean::::casa ########################################## 2026-10-08 10:01:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:01:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:01:45 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:01:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:01:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:01:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:01:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:01:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:01:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:01:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:01:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:01:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:01:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:01:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:01:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:01:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024426 2026-10-08 10:01:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:01:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:01:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:01:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:01:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:01:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:01:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:01:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:01:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:01:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:01:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:01:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:01:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:01:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:01:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:01:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:01:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:01:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:01:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:01:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:01:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:01:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:01:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:01:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:01:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:01:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:01:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:01:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:01:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:01:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:01:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:01:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:01:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:01:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:02:00 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:02:00 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:02:02 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:01:44.532058 End time: 2026-10-08 10:02:02.023015 2026-10-08 10:02:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:02:02 INFO tclean::::casa ########################################## 2026-10-08 10:02:02 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:02:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:02:02 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) 2026-10-08 10:02:02 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:02:02 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:02:02 2026****** 2026-10-08 10:02:02 INFO ImageFitter::fit+ 2026-10-08 10:02:02 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:02:02 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:02:02 INFO ImageFitter::fit+ --- region: 2026-10-08 10:02:02 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:02:02 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:02:02 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:02:02 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:02:02 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:02:02 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:02:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:02:02 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) 2026-10-08 10:02:02 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:02:02 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:02:02 INFO imstat::::casa ########################################## 2026-10-08 10:02:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:02:02 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 ) 2026-10-08 10:02:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:02:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:02:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:02:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:02:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:02:02 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) 2026-10-08 10:02:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:02:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:02:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:02:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:02:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:02:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:02:02 INFO imstat:::: Values --- 2026-10-08 10:02:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:02:02 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:02:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:02:02 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-10-08 10:02:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:02:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:02:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:02:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:02:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:02:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:02:02 INFO imstat:::: Statistics --- 2026-10-08 10:02:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:02:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:02:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:02:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:02:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-10-08 10:02:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-10-08 10:02:02 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-10-08 10:02:02 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-10-08 10:02:02 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-10-08 10:02:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:02:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:02:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:02:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:02:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:02:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:02:02 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 2026-10-08 10:02:02 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:02:02.079926 End time: 2026-10-08 10:02:02.099258 2026-10-08 10:02:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:02:02 INFO imstat::::casa ########################################## 2026-10-08 10:02:02 INFO phaseshift::::casa ########################################## 2026-10-08 10:02:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:02:02 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 0.110875644rad' ) 2026-10-08 10:02:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:02:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:02:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:02:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:02:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:02:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:02:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:02:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:02:02 INFO MSTransformManager::open Select data 2026-10-08 10:02:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:02:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:02:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 0.110875644rad' successfully parsed 2026-10-08 10:02:05 INFO phaseshift::::casa Shift phase center 2026-10-08 10:02:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:02:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:02:02.112431 End time: 2026-10-08 10:02:06.010126 2026-10-08 10:02:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:02:06 INFO phaseshift::::casa ########################################## 2026-10-08 10:02:06 INFO tclean::::casa ########################################## 2026-10-08 10:02:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:02:06 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:02:06 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:02:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:02:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:02:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:02:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:02:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:02:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:02:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:02:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:02:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:02:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:02:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:02:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:02:08 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025612 2026-10-08 10:02:08 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:02:08 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:02:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:02:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:02:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:02:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:02:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:02:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:02:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:02:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:02:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:02:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:02:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:02:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:02:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:02:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:02:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:02:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:02:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:02:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:02:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:02:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:02:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:02:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:02:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:02:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:02:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:02:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:02:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:02:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:02:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:02:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:02:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:02:18 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:02:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:02:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:02:19 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:02:06.066488 End time: 2026-10-08 10:02:19.370778 2026-10-08 10:02:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:02:19 INFO tclean::::casa ########################################## 2026-10-08 10:02:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:02:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:02:19 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) 2026-10-08 10:02:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:02:19 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:02:19 2026****** 2026-10-08 10:02:19 INFO ImageFitter::fit+ 2026-10-08 10:02:19 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:02:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:02:19 INFO ImageFitter::fit+ --- region: 2026-10-08 10:02:19 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:02:19 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:02:19 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:02:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:02:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:02:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:02:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:02:19 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) 2026-10-08 10:02:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:02:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:02:19 INFO imstat::::casa ########################################## 2026-10-08 10:02:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:02:19 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 ) 2026-10-08 10:02:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:02:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:02:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:02:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:02:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:02:19 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) 2026-10-08 10:02:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:02:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:02:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:02:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:02:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:02:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:02:19 INFO imstat:::: Values --- 2026-10-08 10:02:19 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:02:19 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:02:19 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:02:19 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-10-08 10:02:19 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:02:19 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 10:02:19 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:02:19 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-08 10:02:19 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:02:19 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:02:19 INFO imstat:::: Statistics --- 2026-10-08 10:02:19 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:02:19 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:02:19 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:02:19 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:02:19 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-10-08 10:02:19 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-10-08 10:02:19 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-10-08 10:02:19 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-10-08 10:02:19 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-10-08 10:02:19 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:02:19 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:02:19 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:02:19 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:02:19 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:02:19 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:02:19 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 2026-10-08 10:02:19 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:02:19.449634 End time: 2026-10-08 10:02:19.477069 2026-10-08 10:02:19 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:02:19 INFO imstat::::casa ########################################## 2026-10-08 10:02:19 INFO phaseshift::::casa ########################################## 2026-10-08 10:02:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:02:19 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 75.089719167deg +006d21m09.7433' ) 2026-10-08 10:02:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:02:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:02:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:02:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:02:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:02:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:02:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:02:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:02:20 INFO MSTransformManager::open Select data 2026-10-08 10:02:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:02:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:02:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg +006d21m09.7433' successfully parsed 2026-10-08 10:02:22 INFO phaseshift::::casa Shift phase center 2026-10-08 10:02:23 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:02:23 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:02:19.494244 End time: 2026-10-08 10:02:23.125582 2026-10-08 10:02:23 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:02:23 INFO phaseshift::::casa ########################################## 2026-10-08 10:02:23 INFO tclean::::casa ########################################## 2026-10-08 10:02:23 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:02:23 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:02:23 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:02:23 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:02:23 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:02:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:02:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:02:23 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:02:23 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:02:23 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:02:23 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:02:23 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:02:23 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:02:23 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:02:24 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:02:24 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022105 2026-10-08 10:02:24 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:02:24 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:02:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:02:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:02:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:02:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:02:27 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:02:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:02:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:02:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:02:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:02:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:02:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:02:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:02:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:02:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:02:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:02:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:02:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:02:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:02:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:02:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:02:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:02:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:02:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:02:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:02:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:02:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:02:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:02:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:02:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:02:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:02:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:02:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:02:33 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:02:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:02:34 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:02:23.185483 End time: 2026-10-08 10:02:34.157819 2026-10-08 10:02:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:02:34 INFO tclean::::casa ########################################## 2026-10-08 10:02:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:02:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:02:34 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 10:02:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:02:34 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:02:34 2026****** 2026-10-08 10:02:34 INFO ImageFitter::fit+ 2026-10-08 10:02:34 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:02:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:02:34 INFO ImageFitter::fit+ --- region: 2026-10-08 10:02:34 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:02:34 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:02:34 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:02:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:02:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:02:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:02:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:02:34 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 10:02:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116867 Jy 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126483 Jy 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:02:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:02:34 INFO imstat::::casa ########################################## 2026-10-08 10:02:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:02:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 10:02:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:02:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:02:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:02:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:02:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:02:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 10:02:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:02:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:02:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:02:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:02:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:02:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:02:34 INFO imstat:::: Values --- 2026-10-08 10:02:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:02:34 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:02:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:02:34 INFO imstat:::: -- minimum value [min]: -7.77768e-05 Jy/beam 2026-10-08 10:02:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:02:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:02:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:02:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:02:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:02:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:02:34 INFO imstat:::: Statistics --- 2026-10-08 10:02:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:02:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:02:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:02:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:02:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-10-08 10:02:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73609e-05 Jy/beam 2026-10-08 10:02:34 INFO imstat:::: -- IQR [quartile]: 3.56013e-05 Jy/beam 2026-10-08 10:02:34 INFO imstat:::: -- First quartile [q1]: -3.4507e-05 Jy/beam 2026-10-08 10:02:34 INFO imstat:::: -- Third quartile [q3]: 1.09435e-06 Jy/beam 2026-10-08 10:02:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:02:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:02:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:02:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:02:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:02:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:02:34 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 2026-10-08 10:02:34 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:02:34.222068 End time: 2026-10-08 10:02:34.246664 2026-10-08 10:02:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:02:34 INFO imstat::::casa ########################################## 2026-10-08 10:02:34 INFO phaseshift::::casa ########################################## 2026-10-08 10:02:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:02:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 00:25:24.6496' ) 2026-10-08 10:02:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:02:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:02:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:02:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:02:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:02:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:02:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:02:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:02:34 INFO MSTransformManager::open Select data 2026-10-08 10:02:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:02:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-08 10:02:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 00:25:24.6496' successfully parsed 2026-10-08 10:02:38 INFO phaseshift::::casa Shift phase center 2026-10-08 10:02:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:02:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:02:34.262521 End time: 2026-10-08 10:02:38.719956 2026-10-08 10:02:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:02:39 INFO phaseshift::::casa ########################################## 2026-10-08 10:02:39 INFO tclean::::casa ########################################## 2026-10-08 10:02:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:02:39 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:02:39 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:02:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:02:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:02:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:02:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:02:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:02:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:02:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:02:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:02:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:02:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:02:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:02:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:02:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024037 2026-10-08 10:02:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:02:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:02:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:02:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:02:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:02:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:02:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:02:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:02:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:02:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:02:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:02:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:02:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:02:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:02:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:02:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:02:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:02:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:02:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:02:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:02:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:02:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:02:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:02:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:02:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:02:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:02:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:02:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:02:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:02:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:02:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:02:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:02:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:02:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:02:53 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:02:53 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:02:55 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:02:38.772605 End time: 2026-10-08 10:02:54.863026 2026-10-08 10:02:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:02:55 INFO tclean::::casa ########################################## 2026-10-08 10:02:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:02:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:02:55 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) 2026-10-08 10:02:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:02:55 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:02:55 2026****** 2026-10-08 10:02:55 INFO ImageFitter::fit+ 2026-10-08 10:02:55 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:02:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:02:55 INFO ImageFitter::fit+ --- region: 2026-10-08 10:02:55 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:02:55 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:02:55 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:02:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:02:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:02:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:02:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:02:55 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) 2026-10-08 10:02:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116903 Jy 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126517 Jy 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:02:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:02:55 INFO imstat::::casa ########################################## 2026-10-08 10:02:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:02:55 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 ) 2026-10-08 10:02:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:02:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:02:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:02:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:02:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:02:55 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) 2026-10-08 10:02:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:02:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:02:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:02:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:02:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-08 10:02:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-08 10:02:55 INFO imstat:::: Values --- 2026-10-08 10:02:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:02:55 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:02:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:02:55 INFO imstat:::: -- minimum value [min]: -7.78731e-05 Jy/beam 2026-10-08 10:02:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:02:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:02:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:02:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:02:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:02:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:02:55 INFO imstat:::: Statistics --- 2026-10-08 10:02:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:02:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:02:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:02:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:02:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86503e-05 Jy/beam 2026-10-08 10:02:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73798e-05 Jy/beam 2026-10-08 10:02:55 INFO imstat:::: -- IQR [quartile]: 3.56966e-05 Jy/beam 2026-10-08 10:02:55 INFO imstat:::: -- First quartile [q1]: -3.45352e-05 Jy/beam 2026-10-08 10:02:55 INFO imstat:::: -- Third quartile [q3]: 1.16146e-06 Jy/beam 2026-10-08 10:02:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:02:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:02:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:02:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:02:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:02:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:02:55 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 2026-10-08 10:02:55 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:02:54.936046 End time: 2026-10-08 10:02:54.962602 2026-10-08 10:02:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:02:55 INFO imstat::::casa ########################################## 2026-10-08 10:02:55 INFO phaseshift::::casa ########################################## 2026-10-08 10:02:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:02:55 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 6.352706472deg' ) 2026-10-08 10:02:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:02:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:02:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:02:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:02:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:02:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:02:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:02:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:02:55 INFO MSTransformManager::open Select data 2026-10-08 10:02:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:02:58 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:02:58 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 6.352706472deg' successfully parsed 2026-10-08 10:02:58 INFO phaseshift::::casa Shift phase center 2026-10-08 10:03:00 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:03:00 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:02:54.979366 End time: 2026-10-08 10:03:00.215188 2026-10-08 10:03:00 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:03:00 INFO phaseshift::::casa ########################################## 2026-10-08 10:03:00 INFO tclean::::casa ########################################## 2026-10-08 10:03:00 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:03:00 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:03:00 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:03:00 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:03:00 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:03:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:03:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:03:00 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:03:00 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:03:00 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:03:00 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:03:00 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:03:00 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:03:00 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:03:02 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:03:02 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025352 2026-10-08 10:03:02 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:03:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:03:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:03:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:03:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:03:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:03:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:03:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:03:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:03:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:03:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:03:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:03:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:03:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:03:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:03:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:03:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:03:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:03:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:03:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:03:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:03:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:03:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:03:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:03:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:03:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:03:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:03:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:03:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:03:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:03:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:03:10 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:03:10 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:03:10 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:03:11 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:03:12 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:03:13 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:03:00.268878 End time: 2026-10-08 10:03:12.992551 2026-10-08 10:03:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:03:13 INFO tclean::::casa ########################################## 2026-10-08 10:03:13 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:03:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:03:13 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 10:03:13 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:03:13 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:03:13 2026****** 2026-10-08 10:03:13 INFO ImageFitter::fit+ 2026-10-08 10:03:13 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:03:13 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:03:13 INFO ImageFitter::fit+ --- region: 2026-10-08 10:03:13 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:03:13 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:03:13 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:03:13 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:03:13 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:03:13 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:03:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:03:13 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 10:03:13 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011687 Jy 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:03:13 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:03:13 INFO imstat::::casa ########################################## 2026-10-08 10:03:13 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:03:13 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 10:03:13 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:03:13 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:03:13 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:03:13 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:03:13 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:03:13 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 10:03:13 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:03:13 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:03:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:03:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:03:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:03:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:03:13 INFO imstat:::: Values --- 2026-10-08 10:03:13 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:03:13 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:03:13 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:03:13 INFO imstat:::: -- minimum value [min]: -7.77771e-05 Jy/beam 2026-10-08 10:03:13 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:03:13 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:03:13 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:03:13 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:03:13 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:03:13 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:03:13 INFO imstat:::: Statistics --- 2026-10-08 10:03:13 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:03:13 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:03:13 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:03:13 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:03:13 INFO imstat:::: -- Median of the pixel values [median]: -1.86715e-05 Jy/beam 2026-10-08 10:03:13 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73619e-05 Jy/beam 2026-10-08 10:03:13 INFO imstat:::: -- IQR [quartile]: 3.56021e-05 Jy/beam 2026-10-08 10:03:13 INFO imstat:::: -- First quartile [q1]: -3.45061e-05 Jy/beam 2026-10-08 10:03:13 INFO imstat:::: -- Third quartile [q3]: 1.09605e-06 Jy/beam 2026-10-08 10:03:13 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:03:13 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:03:13 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:03:13 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:03:13 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:03:13 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:03:13 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 2026-10-08 10:03:13 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:03:13.051690 End time: 2026-10-08 10:03:13.085144 2026-10-08 10:03:13 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:03:13 INFO imstat::::casa ########################################## 2026-10-08 10:03:13 INFO phaseshift::::casa ########################################## 2026-10-08 10:03:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:03:13 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 0.110875644rad' ) 2026-10-08 10:03:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:03:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:03:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:03:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:03:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:03:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:03:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:03:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:03:13 INFO MSTransformManager::open Select data 2026-10-08 10:03:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:03:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:03:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 0.110875644rad' successfully parsed 2026-10-08 10:03:17 INFO phaseshift::::casa Shift phase center 2026-10-08 10:03:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:03:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:03:13.098777 End time: 2026-10-08 10:03:18.440801 2026-10-08 10:03:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:03:18 INFO phaseshift::::casa ########################################## 2026-10-08 10:03:18 INFO tclean::::casa ########################################## 2026-10-08 10:03:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:03:18 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:03:18 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:03:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:03:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:03:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:03:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:03:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:03:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:03:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:03:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:03:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:03:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:03:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:03:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:03:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02704 2026-10-08 10:03:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:03:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:03:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:03:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:03:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:03:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:03:24 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:03:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:03:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:03:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:03:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:03:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:03:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:03:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:03:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:03:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:03:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:03:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:03:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:03:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:03:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:03:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:03:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:03:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:03:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:03:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:03:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:03:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:03:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:03:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:03:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:03:34 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:03:34 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:03:34 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:03:35 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:03:36 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:03:37 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:03:18.497224 End time: 2026-10-08 10:03:37.304833 2026-10-08 10:03:37 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:03:37 INFO tclean::::casa ########################################## 2026-10-08 10:03:37 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:03:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:03:37 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) 2026-10-08 10:03:37 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:03:37 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:03:37 2026****** 2026-10-08 10:03:37 INFO ImageFitter::fit+ 2026-10-08 10:03:37 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:03:37 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:03:37 INFO ImageFitter::fit+ --- region: 2026-10-08 10:03:37 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:03:37 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:03:37 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:03:37 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:03:37 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:03:37 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:03:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:03:37 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) 2026-10-08 10:03:37 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126482 Jy 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:03:37 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:03:37 INFO imstat::::casa ########################################## 2026-10-08 10:03:37 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:03:37 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 ) 2026-10-08 10:03:37 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:03:37 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:03:37 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:03:37 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:03:37 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:03:37 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 10:03:37 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:03:37 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:03:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:03:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:03:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:03:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:03:37 INFO imstat:::: Values --- 2026-10-08 10:03:37 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:03:37 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:03:37 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:03:37 INFO imstat:::: -- minimum value [min]: -7.77855e-05 Jy/beam 2026-10-08 10:03:37 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:03:37 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 10:03:37 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:03:37 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-08 10:03:37 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:03:37 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:03:37 INFO imstat:::: Statistics --- 2026-10-08 10:03:37 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:03:37 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:03:37 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:03:37 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:03:37 INFO imstat:::: -- Median of the pixel values [median]: -1.86732e-05 Jy/beam 2026-10-08 10:03:37 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73562e-05 Jy/beam 2026-10-08 10:03:37 INFO imstat:::: -- IQR [quartile]: 3.56008e-05 Jy/beam 2026-10-08 10:03:37 INFO imstat:::: -- First quartile [q1]: -3.45107e-05 Jy/beam 2026-10-08 10:03:37 INFO imstat:::: -- Third quartile [q3]: 1.09015e-06 Jy/beam 2026-10-08 10:03:37 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:03:37 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:03:37 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:03:37 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:03:37 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:03:37 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:03:37 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 2026-10-08 10:03:37 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:03:37.382872 End time: 2026-10-08 10:03:37.416852 2026-10-08 10:03:37 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:03:37 INFO imstat::::casa ########################################## 2026-10-08 10:03:37 INFO phaseshift::::casa ########################################## 2026-10-08 10:03:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:03:37 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad +006d21m09.7433' ) 2026-10-08 10:03:37 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:03:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:03:37 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:03:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:03:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:03:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:03:37 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:03:37 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:03:37 INFO MSTransformManager::open Select data 2026-10-08 10:03:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:03:40 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:03:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad +006d21m09.7433' successfully parsed 2026-10-08 10:03:40 INFO phaseshift::::casa Shift phase center 2026-10-08 10:03:41 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:03:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:03:37.432705 End time: 2026-10-08 10:03:41.362836 2026-10-08 10:03:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:03:41 INFO phaseshift::::casa ########################################## 2026-10-08 10:03:41 INFO tclean::::casa ########################################## 2026-10-08 10:03:41 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:03:41 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:03:41 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:03:41 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:03:41 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:03:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:03:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:03:42 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:03:42 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:03:42 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:03:42 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:03:42 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:03:42 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:03:42 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:03:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:03:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027026 2026-10-08 10:03:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:03:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:03:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:03:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:03:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:03:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:03:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:03:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:03:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:03:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:03:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:03:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:03:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:03:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:03:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:03:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:03:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:03:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:03:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:03:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:03:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:03:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:03:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:03:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:03:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:03:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:03:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:03:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:03:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:03:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:03:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:03:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:03:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:03:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:03:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:03:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:03:54 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:03:41.416549 End time: 2026-10-08 10:03:54.272316 2026-10-08 10:03:54 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:03:54 INFO tclean::::casa ########################################## 2026-10-08 10:03:54 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:03:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:03:54 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 10:03:54 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:03:54 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:03:54 2026****** 2026-10-08 10:03:54 INFO ImageFitter::fit+ 2026-10-08 10:03:54 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:03:54 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:03:54 INFO ImageFitter::fit+ --- region: 2026-10-08 10:03:54 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:03:54 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:03:54 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:03:54 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:03:54 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:03:54 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:03:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:03:54 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 10:03:54 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:03:54 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:03:54 INFO imstat::::casa ########################################## 2026-10-08 10:03:54 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:03:54 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 10:03:54 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:03:54 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:03:54 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:03:54 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:03:54 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:03:54 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 10:03:54 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:03:54 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:03:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:03:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:03:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:03:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:03:54 INFO imstat:::: Values --- 2026-10-08 10:03:54 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:03:54 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:03:54 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:03:54 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-10-08 10:03:54 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:03:54 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:03:54 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:03:54 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:03:54 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:03:54 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:03:54 INFO imstat:::: Statistics --- 2026-10-08 10:03:54 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:03:54 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:03:54 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:03:54 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:03:54 INFO imstat:::: -- Median of the pixel values [median]: -1.86669e-05 Jy/beam 2026-10-08 10:03:54 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73635e-05 Jy/beam 2026-10-08 10:03:54 INFO imstat:::: -- IQR [quartile]: 3.56081e-05 Jy/beam 2026-10-08 10:03:54 INFO imstat:::: -- First quartile [q1]: -3.45085e-05 Jy/beam 2026-10-08 10:03:54 INFO imstat:::: -- Third quartile [q3]: 1.09959e-06 Jy/beam 2026-10-08 10:03:54 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:03:54 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:03:54 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:03:54 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:03:54 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:03:54 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:03:54 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 2026-10-08 10:03:54 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:03:54.356918 End time: 2026-10-08 10:03:54.385354 2026-10-08 10:03:54 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:03:54 INFO imstat::::casa ########################################## 2026-10-08 10:03:54 INFO phaseshift::::casa ########################################## 2026-10-08 10:03:54 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:03:54 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 00:25:24.6496' ) 2026-10-08 10:03:54 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:03:54 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:03:54 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:03:54 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:03:54 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:03:54 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:03:54 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:03:54 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:03:54 INFO MSTransformManager::open Select data 2026-10-08 10:03:54 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:03:59 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 ".". 2026-10-08 10:03:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 00:25:24.6496' successfully parsed 2026-10-08 10:03:59 INFO phaseshift::::casa Shift phase center 2026-10-08 10:04:01 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:04:01 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:03:54.402515 End time: 2026-10-08 10:04:01.230822 2026-10-08 10:04:01 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:04:01 INFO phaseshift::::casa ########################################## 2026-10-08 10:04:01 INFO tclean::::casa ########################################## 2026-10-08 10:04:01 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:04:01 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:04:01 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:04:01 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:04:01 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:04:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:04:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:04:02 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:04:02 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:04:02 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:04:02 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:04:02 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:04:02 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:04:02 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:04:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:04:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02548 2026-10-08 10:04:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:04:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:04:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:04:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:04:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:04:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:04:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:04:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:04:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:04:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:04:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:04:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:04:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:04:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:04:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:04:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:04:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:04:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:04:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:04:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:04:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:04:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:04:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:04:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:04:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:04:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:04:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 10:04:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:04:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:04:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:04:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:04:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:04:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:04:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:04:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:04:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:04:18 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:04:01.287729 End time: 2026-10-08 10:04:17.906403 2026-10-08 10:04:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:04:18 INFO tclean::::casa ########################################## 2026-10-08 10:04:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:04:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:04:18 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) 2026-10-08 10:04:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:04:18 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:04:18 2026****** 2026-10-08 10:04:18 INFO ImageFitter::fit+ 2026-10-08 10:04:18 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:04:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:04:18 INFO ImageFitter::fit+ --- region: 2026-10-08 10:04:18 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:04:18 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:04:18 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:04:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:04:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:04:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:04:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:04:18 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) 2026-10-08 10:04:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116905 Jy 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000041 +/- 0.000777 arcsec 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- ra: 127.999941 +/- 0.000127 pixels 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- dec: 127.999954 +/- 0.000097 pixels 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:04:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:04:18 INFO imstat::::casa ########################################## 2026-10-08 10:04:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:04:18 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 ) 2026-10-08 10:04:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:04:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:04:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:04:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:04:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:04:18 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-08 10:04:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:04:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:04:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:04:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:04:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-08 10:04:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-08 10:04:18 INFO imstat:::: Values --- 2026-10-08 10:04:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:04:18 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:04:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:04:18 INFO imstat:::: -- minimum value [min]: -7.78774e-05 Jy/beam 2026-10-08 10:04:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:04:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:04:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:04:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:04:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:04:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:04:18 INFO imstat:::: Statistics --- 2026-10-08 10:04:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:04:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:04:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:04:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:04:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86532e-05 Jy/beam 2026-10-08 10:04:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73779e-05 Jy/beam 2026-10-08 10:04:18 INFO imstat:::: -- IQR [quartile]: 3.5701e-05 Jy/beam 2026-10-08 10:04:18 INFO imstat:::: -- First quartile [q1]: -3.45356e-05 Jy/beam 2026-10-08 10:04:18 INFO imstat:::: -- Third quartile [q3]: 1.16544e-06 Jy/beam 2026-10-08 10:04:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:04:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:04:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:04:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:04:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:04:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:04:18 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 2026-10-08 10:04:18 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:04:17.994756 End time: 2026-10-08 10:04:18.023840 2026-10-08 10:04:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:04:18 INFO imstat::::casa ########################################## 2026-10-08 10:04:18 INFO phaseshift::::casa ########################################## 2026-10-08 10:04:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:04:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 6.352706472deg' ) 2026-10-08 10:04:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:04:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:04:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:04:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:04:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:04:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:04:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:04:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:04:18 INFO MSTransformManager::open Select data 2026-10-08 10:04:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:04:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:04:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 6.352706472deg' successfully parsed 2026-10-08 10:04:22 INFO phaseshift::::casa Shift phase center 2026-10-08 10:04:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:04:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:04:18.043646 End time: 2026-10-08 10:04:23.625027 2026-10-08 10:04:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:04:24 INFO phaseshift::::casa ########################################## 2026-10-08 10:04:24 INFO tclean::::casa ########################################## 2026-10-08 10:04:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:04:24 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:04:24 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:04:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:04:24 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:04:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:04:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:04:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:04:24 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:04:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:04:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:04:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:04:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:04:24 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:04:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:04:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029914 2026-10-08 10:04:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:04:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:04:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:04:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:04:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:04:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:04:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:04:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:04:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:04:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:04:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:04:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:04:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:04:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:04:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:04:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:04:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:04:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:04:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:04:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:04:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:04:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:04:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:04:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:04:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:04:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:04:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 10:04:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:04:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:04:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:04:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:04:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:04:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:04:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:04:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:04:41 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:04:43 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:04:23.685034 End time: 2026-10-08 10:04:42.633231 2026-10-08 10:04:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:04:43 INFO tclean::::casa ########################################## 2026-10-08 10:04:43 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:04:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:04:43 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) 2026-10-08 10:04:43 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:04:43 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:04:43 2026****** 2026-10-08 10:04:43 INFO ImageFitter::fit+ 2026-10-08 10:04:43 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:04:43 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:04:43 INFO ImageFitter::fit+ --- region: 2026-10-08 10:04:43 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:04:43 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:04:43 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:04:43 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:04:43 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:04:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:04:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:04:43 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) 2026-10-08 10:04:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:04:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:04:43 INFO imstat::::casa ########################################## 2026-10-08 10:04:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:04:43 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 ) 2026-10-08 10:04:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:04:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:04:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:04:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:04:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:04:43 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) 2026-10-08 10:04:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:04:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:04:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:04:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:04:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:04:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:04:43 INFO imstat:::: Values --- 2026-10-08 10:04:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:04:43 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:04:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:04:43 INFO imstat:::: -- minimum value [min]: -7.77798e-05 Jy/beam 2026-10-08 10:04:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:04:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:04:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:04:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:04:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:04:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:04:43 INFO imstat:::: Statistics --- 2026-10-08 10:04:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:04:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:04:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:04:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:04:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86675e-05 Jy/beam 2026-10-08 10:04:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73645e-05 Jy/beam 2026-10-08 10:04:43 INFO imstat:::: -- IQR [quartile]: 3.56077e-05 Jy/beam 2026-10-08 10:04:43 INFO imstat:::: -- First quartile [q1]: -3.45073e-05 Jy/beam 2026-10-08 10:04:43 INFO imstat:::: -- Third quartile [q3]: 1.1004e-06 Jy/beam 2026-10-08 10:04:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:04:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:04:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:04:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:04:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:04:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:04:43 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 2026-10-08 10:04:43 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:04:42.713879 End time: 2026-10-08 10:04:42.743299 2026-10-08 10:04:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:04:43 INFO imstat::::casa ########################################## 2026-10-08 10:04:43 INFO phaseshift::::casa ########################################## 2026-10-08 10:04:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:04:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 0.110875644rad' ) 2026-10-08 10:04:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:04:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:04:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:04:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:04:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:04:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:04:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:04:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:04:43 INFO MSTransformManager::open Select data 2026-10-08 10:04:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:04:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:04:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 0.110875644rad' successfully parsed 2026-10-08 10:04:47 INFO phaseshift::::casa Shift phase center 2026-10-08 10:04:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:04:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:04:42.764187 End time: 2026-10-08 10:04:47.654864 2026-10-08 10:04:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:04:48 INFO phaseshift::::casa ########################################## 2026-10-08 10:04:48 INFO tclean::::casa ########################################## 2026-10-08 10:04:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:04:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:04:48 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:04:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:04:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:04:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:04:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:04:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:04:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:04:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:04:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:04:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:04:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:04:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:04:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:04:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025763 2026-10-08 10:04:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:04:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:04:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:04:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:04:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:04:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:04:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:04:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:04:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:04:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:04:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:04:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:04:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:04:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:04:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:04:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:04:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:04:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:04:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:04:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:04:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:04:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:04:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:04:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:04:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:04:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:04:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:05:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:05:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:05:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:05:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:05:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:05:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:05:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:05:02 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:05:03 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:05:05 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:04:47.715005 End time: 2026-10-08 10:05:04.582916 2026-10-08 10:05:05 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:05:05 INFO tclean::::casa ########################################## 2026-10-08 10:05:05 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:05:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:05:05 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) 2026-10-08 10:05:05 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:05:05 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:05:05 2026****** 2026-10-08 10:05:05 INFO ImageFitter::fit+ 2026-10-08 10:05:05 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:05:05 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:05:05 INFO ImageFitter::fit+ --- region: 2026-10-08 10:05:05 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:05:05 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:05:05 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:05:05 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:05:05 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:05:05 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:05:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:05:05 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) 2026-10-08 10:05:05 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000002 +/- 0.000777 arcsec 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- ra: 128.000014 +/- 0.000127 pixels 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- dec: 127.999998 +/- 0.000097 pixels 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:05:05 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:05:05 INFO imstat::::casa ########################################## 2026-10-08 10:05:05 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:05:05 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 ) 2026-10-08 10:05:05 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:05:05 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:05:05 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:05:05 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:05:05 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:05:05 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) 2026-10-08 10:05:05 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:05:05 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:05:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:05:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:05:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:05:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:05:05 INFO imstat:::: Values --- 2026-10-08 10:05:05 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:05:05 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:05:05 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:05:05 INFO imstat:::: -- minimum value [min]: -7.77816e-05 Jy/beam 2026-10-08 10:05:05 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:05:05 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 10:05:05 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:05:05 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-08 10:05:05 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:05:05 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:05:05 INFO imstat:::: Statistics --- 2026-10-08 10:05:05 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:05:05 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:05:05 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:05:05 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:05:05 INFO imstat:::: -- Median of the pixel values [median]: -1.8676e-05 Jy/beam 2026-10-08 10:05:05 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73584e-05 Jy/beam 2026-10-08 10:05:05 INFO imstat:::: -- IQR [quartile]: 3.56038e-05 Jy/beam 2026-10-08 10:05:05 INFO imstat:::: -- First quartile [q1]: -3.45104e-05 Jy/beam 2026-10-08 10:05:05 INFO imstat:::: -- Third quartile [q3]: 1.09331e-06 Jy/beam 2026-10-08 10:05:05 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:05:05 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:05:05 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:05:05 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:05:05 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:05:05 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:05:05 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 2026-10-08 10:05:05 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:05:04.668444 End time: 2026-10-08 10:05:04.698850 2026-10-08 10:05:05 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:05:05 INFO imstat::::casa ########################################## 2026-10-08 10:05:05 INFO phaseshift::::casa ########################################## 2026-10-08 10:05:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:05:05 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39d58m05.8512' ) 2026-10-08 10:05:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:05:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:05:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:05:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:05:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:05:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:05:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:05:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:05:05 INFO MSTransformManager::open Select data 2026-10-08 10:05:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:05:09 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:05:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39d58m05.8512' successfully parsed 2026-10-08 10:05:09 INFO phaseshift::::casa Shift phase center 2026-10-08 10:05:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:05:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:05:04.718024 End time: 2026-10-08 10:05:10.095288 2026-10-08 10:05:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:05:10 INFO phaseshift::::casa ########################################## 2026-10-08 10:05:10 INFO tclean::::casa ########################################## 2026-10-08 10:05:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:05:10 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:05:10 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:05:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:05:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:05:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:05:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:05:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:05:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:05:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:05:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:05:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:05:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:05:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:05:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:05:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027693 2026-10-08 10:05:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:05:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:05:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:05:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:05:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:05:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:05:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:05:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:05:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:05:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:05:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:05:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:05:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:05:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:05:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:05:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:05:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:05:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:05:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:05:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:05:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:05:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:05:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:05:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:05:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:05:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:05:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 10:05:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:05:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:05:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:05:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:05:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:05:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:05:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:05:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:05:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:05:31 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:05:10.134674 End time: 2026-10-08 10:05:30.781875 2026-10-08 10:05:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:05:31 INFO tclean::::casa ########################################## 2026-10-08 10:05:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:05:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:05:31 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) 2026-10-08 10:05:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:05:31 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:05:31 2026****** 2026-10-08 10:05:31 INFO ImageFitter::fit+ 2026-10-08 10:05:31 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:05:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:05:31 INFO ImageFitter::fit+ --- region: 2026-10-08 10:05:31 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:05:31 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:05:31 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:05:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:05:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:05:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:05:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:05:31 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) 2026-10-08 10:05:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:05:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:05:31 INFO imstat::::casa ########################################## 2026-10-08 10:05:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:05:31 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 ) 2026-10-08 10:05:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:05:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:05:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:05:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:05:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:05:31 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) 2026-10-08 10:05:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:05:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:05:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:05:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:05:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:05:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:05:31 INFO imstat:::: Values --- 2026-10-08 10:05:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:05:31 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:05:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:05:31 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-08 10:05:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:05:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:05:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:05:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:05:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:05:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:05:31 INFO imstat:::: Statistics --- 2026-10-08 10:05:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:05:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:05:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:05:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:05:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-08 10:05:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-08 10:05:31 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-08 10:05:31 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-08 10:05:31 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-08 10:05:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:05:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:05:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:05:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:05:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:05:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:05:31 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 2026-10-08 10:05:31 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:05:30.855842 End time: 2026-10-08 10:05:30.882909 2026-10-08 10:05:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:05:31 INFO imstat::::casa ########################################## 2026-10-08 10:05:31 INFO phaseshift::::casa ########################################## 2026-10-08 10:05:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:05:31 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' ) 2026-10-08 10:05:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:05:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:05:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:05:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:05:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:05:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:05:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:05:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:05:31 INFO MSTransformManager::open Select data 2026-10-08 10:05:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:05:35 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 ".". 2026-10-08 10:05:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 02:39:52.3901' successfully parsed 2026-10-08 10:05:35 INFO phaseshift::::casa Shift phase center 2026-10-08 10:05:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:05:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:05:30.900064 End time: 2026-10-08 10:05:36.278804 2026-10-08 10:05:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:05:36 INFO phaseshift::::casa ########################################## 2026-10-08 10:05:36 INFO tclean::::casa ########################################## 2026-10-08 10:05:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:05:36 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:05:36 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:05:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:05:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:05:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:05:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:05:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:05:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:05:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:05:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:05:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:05:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:05:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:05:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:05:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025394 2026-10-08 10:05:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:05:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:05:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:05:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:05:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:05:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:05:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:05:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:05:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:05:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:05:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:05:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:05:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:05:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:05:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:05:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:05:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:05:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:05:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:05:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:05:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:05:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:05:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:05:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:05:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:05:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:05:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:05:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:05:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:05:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:05:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:05:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:05:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:05:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:05:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:05:51 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:05:53 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:05:36.335625 End time: 2026-10-08 10:05:53.036037 2026-10-08 10:05:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:05:53 INFO tclean::::casa ########################################## 2026-10-08 10:05:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:05:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:05:53 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) 2026-10-08 10:05:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:05:53 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:05:53 2026****** 2026-10-08 10:05:53 INFO ImageFitter::fit+ 2026-10-08 10:05:53 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:05:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:05:53 INFO ImageFitter::fit+ --- region: 2026-10-08 10:05:53 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:05:53 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:05:53 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:05:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:05:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:05:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:05:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:05:53 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) 2026-10-08 10:05:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:05:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:05:53 INFO imstat::::casa ########################################## 2026-10-08 10:05:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:05:53 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 ) 2026-10-08 10:05:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:05:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:05:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:05:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:05:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:05:53 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) 2026-10-08 10:05:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:05:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:05:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:05:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:05:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-08 10:05:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-08 10:05:53 INFO imstat:::: Values --- 2026-10-08 10:05:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:05:53 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:05:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:05:53 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-10-08 10:05:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:05:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:05:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:05:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:05:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:05:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:05:53 INFO imstat:::: Statistics --- 2026-10-08 10:05:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:05:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:05:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:05:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:05:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-10-08 10:05:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-10-08 10:05:53 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-10-08 10:05:53 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-10-08 10:05:53 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-10-08 10:05:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:05:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:05:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:05:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:05:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:05:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:05:53 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 2026-10-08 10:05:53 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:05:53.110797 End time: 2026-10-08 10:05:53.145103 2026-10-08 10:05:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:05:53 INFO imstat::::casa ########################################## 2026-10-08 10:05:53 INFO phaseshift::::casa ########################################## 2026-10-08 10:05:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:05:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39.968292000deg' ) 2026-10-08 10:05:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:05:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:05:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:05:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:05:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:05:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:05:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:05:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:05:53 INFO MSTransformManager::open Select data 2026-10-08 10:05:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:05:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:05:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39.968292000deg' successfully parsed 2026-10-08 10:05:56 INFO phaseshift::::casa Shift phase center 2026-10-08 10:05:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:05:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:05:53.165442 End time: 2026-10-08 10:05:57.053056 2026-10-08 10:05:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:05:57 INFO phaseshift::::casa ########################################## 2026-10-08 10:05:57 INFO tclean::::casa ########################################## 2026-10-08 10:05:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:05:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:05:57 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:05:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:05:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:05:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:05:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:05:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:05:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:05:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:05:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:05:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:05:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:05:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:05:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:05:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02451 2026-10-08 10:05:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:05:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:06:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:06:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:06:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:06:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:06:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:06:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:06:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:06:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:06:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:06:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:06:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:06:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:06:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:06:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:06:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:06:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:06:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:06:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:06:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:06:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:06:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:06:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:06:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:06:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:06:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 10:06:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:06:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:06:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:06:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:06:08 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:06:08 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:06:08 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:06:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:06:09 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:06:10 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:05:57.113632 End time: 2026-10-08 10:06:09.666370 2026-10-08 10:06:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:06:10 INFO tclean::::casa ########################################## 2026-10-08 10:06:10 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:06:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:06:10 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 10:06:10 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:06:10 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:06:10 2026****** 2026-10-08 10:06:10 INFO ImageFitter::fit+ 2026-10-08 10:06:10 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:06:10 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:06:10 INFO ImageFitter::fit+ --- region: 2026-10-08 10:06:10 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:06:10 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:06:10 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:06:10 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:06:10 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:06:10 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:06:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:06:10 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 10:06:10 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:06:10 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:06:10 INFO imstat::::casa ########################################## 2026-10-08 10:06:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:06:10 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 10:06:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:06:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:06:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:06:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:06:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:06:10 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 10:06:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:06:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:06:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:06:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:06:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:06:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:06:10 INFO imstat:::: Values --- 2026-10-08 10:06:10 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:06:10 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:06:10 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:06:10 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-08 10:06:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:06:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:06:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:06:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:06:10 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:06:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:06:10 INFO imstat:::: Statistics --- 2026-10-08 10:06:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:06:10 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:06:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:06:10 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:06:10 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-08 10:06:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-08 10:06:10 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-08 10:06:10 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-08 10:06:10 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-08 10:06:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:06:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:06:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:06:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:06:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:06:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:06:10 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 2026-10-08 10:06:10 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:06:09.740068 End time: 2026-10-08 10:06:09.774931 2026-10-08 10:06:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:06:10 INFO imstat::::casa ########################################## 2026-10-08 10:06:10 INFO phaseshift::::casa ########################################## 2026-10-08 10:06:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:06:10 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 0.697578292rad' ) 2026-10-08 10:06:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:06:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:06:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:06:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:06:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:06:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:06:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:06:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:06:10 INFO MSTransformManager::open Select data 2026-10-08 10:06:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:06:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:06:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 0.697578292rad' successfully parsed 2026-10-08 10:06:12 INFO phaseshift::::casa Shift phase center 2026-10-08 10:06:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:06:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:06:09.800515 End time: 2026-10-08 10:06:12.544956 2026-10-08 10:06:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:06:13 INFO phaseshift::::casa ########################################## 2026-10-08 10:06:13 INFO tclean::::casa ########################################## 2026-10-08 10:06:13 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:06:13 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:06:13 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:06:13 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:06:13 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:06:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:06:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:06:13 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:06:13 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:06:13 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:06:13 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:06:13 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:06:13 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:06:13 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:06:14 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:06:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027224 2026-10-08 10:06:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:06:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:06:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:06:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:06:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:06:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:06:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:06:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:06:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:06:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:06:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:06:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:06:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:06:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:06:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:06:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:06:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:06:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:06:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:06:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:06:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:06:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:06:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:06:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:06:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:06:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:06:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:06:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:06:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:06:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:06:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:06:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:06:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:06:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:06:28 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:06:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:06:30 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:06:12.598714 End time: 2026-10-08 10:06:30.409932 2026-10-08 10:06:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:06:30 INFO tclean::::casa ########################################## 2026-10-08 10:06:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:06:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:06:30 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) 2026-10-08 10:06:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:06:30 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:06:30 2026****** 2026-10-08 10:06:30 INFO ImageFitter::fit+ 2026-10-08 10:06:30 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:06:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:06:30 INFO ImageFitter::fit+ --- region: 2026-10-08 10:06:30 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:06:30 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:06:30 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:06:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:06:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:06:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:06:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:06:30 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) 2026-10-08 10:06:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:06:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:06:30 INFO imstat::::casa ########################################## 2026-10-08 10:06:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:06:30 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 ) 2026-10-08 10:06:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:06:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:06:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:06:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:06:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:06:31 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) 2026-10-08 10:06:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:06:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:06:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:06:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:06:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:06:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:06:31 INFO imstat:::: Values --- 2026-10-08 10:06:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:06:31 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:06:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:06:31 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-10-08 10:06:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:06:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:06:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:06:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:06:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:06:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:06:31 INFO imstat:::: Statistics --- 2026-10-08 10:06:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:06:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:06:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:06:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:06:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-10-08 10:06:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-10-08 10:06:31 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-10-08 10:06:31 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-10-08 10:06:31 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-10-08 10:06:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:06:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:06:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:06:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:06:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:06:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:06:31 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 2026-10-08 10:06:31 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:06:30.487708 End time: 2026-10-08 10:06:30.514911 2026-10-08 10:06:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:06:31 INFO imstat::::casa ########################################## 2026-10-08 10:06:31 INFO phaseshift::::casa ########################################## 2026-10-08 10:06:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:06:31 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39d58m05.8512' ) 2026-10-08 10:06:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:06:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:06:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:06:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:06:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:06:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:06:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:06:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:06:31 INFO MSTransformManager::open Select data 2026-10-08 10:06:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:06:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:06:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39d58m05.8512' successfully parsed 2026-10-08 10:06:35 INFO phaseshift::::casa Shift phase center 2026-10-08 10:06:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:06:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:06:30.532251 End time: 2026-10-08 10:06:36.141046 2026-10-08 10:06:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:06:36 INFO phaseshift::::casa ########################################## 2026-10-08 10:06:36 INFO tclean::::casa ########################################## 2026-10-08 10:06:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:06:36 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:06:36 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:06:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:06:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:06:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:06:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:06:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:06:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:06:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:06:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:06:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:06:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:06:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:06:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:06:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028097 2026-10-08 10:06:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:06:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:06:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:06:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:06:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:06:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:06:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:06:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:06:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:06:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:06:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:06:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:06:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:06:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:06:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:06:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:06:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:06:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:06:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:06:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:06:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:06:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:06:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:06:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:06:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:06:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:06:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:06:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:06:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:06:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:06:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:06:48 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:06:48 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:06:48 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:06:49 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:06:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:06:50 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:06:36.197269 End time: 2026-10-08 10:06:50.341764 2026-10-08 10:06:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:06:50 INFO tclean::::casa ########################################## 2026-10-08 10:06:50 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:06:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:06:50 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) 2026-10-08 10:06:50 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:06:50 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:06:50 2026****** 2026-10-08 10:06:50 INFO ImageFitter::fit+ 2026-10-08 10:06:50 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:06:50 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:06:50 INFO ImageFitter::fit+ --- region: 2026-10-08 10:06:50 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:06:50 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:06:50 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:06:50 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:06:50 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:06:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:06:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:06:50 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) 2026-10-08 10:06:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:06:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:06:50 INFO imstat::::casa ########################################## 2026-10-08 10:06:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:06:50 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 ) 2026-10-08 10:06:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:06:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:06:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:06:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:06:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:06:50 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) 2026-10-08 10:06:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:06:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:06:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:06:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:06:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:06:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:06:50 INFO imstat:::: Values --- 2026-10-08 10:06:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:06:50 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:06:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:06:50 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-10-08 10:06:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:06:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 10:06:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:06:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-08 10:06:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:06:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:06:50 INFO imstat:::: Statistics --- 2026-10-08 10:06:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:06:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:06:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:06:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:06:50 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-10-08 10:06:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-10-08 10:06:50 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-10-08 10:06:50 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-10-08 10:06:50 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-10-08 10:06:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:06:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:06:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:06:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:06:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:06:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:06:50 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 2026-10-08 10:06:50 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:06:50.417645 End time: 2026-10-08 10:06:50.444310 2026-10-08 10:06:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:06:50 INFO imstat::::casa ########################################## 2026-10-08 10:06:50 INFO phaseshift::::casa ########################################## 2026-10-08 10:06:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:06:50 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 02:39:52.3901' ) 2026-10-08 10:06:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:06:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:06:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:06:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:06:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:06:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:06:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:06:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:06:50 INFO MSTransformManager::open Select data 2026-10-08 10:06:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:06:54 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 ".". 2026-10-08 10:06:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 02:39:52.3901' successfully parsed 2026-10-08 10:06:54 INFO phaseshift::::casa Shift phase center 2026-10-08 10:06:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:06:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:06:50.461105 End time: 2026-10-08 10:06:54.802750 2026-10-08 10:06:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:06:55 INFO phaseshift::::casa ########################################## 2026-10-08 10:06:55 INFO tclean::::casa ########################################## 2026-10-08 10:06:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:06:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:06:55 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:06:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:06:55 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:06:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:06:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:06:55 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:06:55 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:06:55 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:06:55 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:06:55 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:06:55 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:06:55 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:06:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:06:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021024 2026-10-08 10:06:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:06:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:06:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:06:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:06:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:07:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:07:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:07:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:07:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:07:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:07:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:07:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:07:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:07:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:07:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:07:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:07:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:07:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:07:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:07:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:07:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:07:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:07:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:07:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:07:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:07:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:07:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 10:07:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:07:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:07:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:07:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:07:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:07:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:07:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:07:11 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:07:12 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:07:13 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:06:54.840019 End time: 2026-10-08 10:07:13.347893 2026-10-08 10:07:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:07:13 INFO tclean::::casa ########################################## 2026-10-08 10:07:13 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:07:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:07:13 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 10:07:13 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:07:13 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:07:13 2026****** 2026-10-08 10:07:13 INFO ImageFitter::fit+ 2026-10-08 10:07:13 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:07:13 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:07:13 INFO ImageFitter::fit+ --- region: 2026-10-08 10:07:13 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:07:13 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:07:13 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:07:13 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:07:13 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:07:13 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:07:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:07:13 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 10:07:13 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- ra: 128.000008 +/- 0.000127 pixels 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:07:13 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:07:13 INFO imstat::::casa ########################################## 2026-10-08 10:07:13 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:07:13 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 10:07:13 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:07:13 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:07:13 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:07:13 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:07:13 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:07:13 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) 2026-10-08 10:07:13 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:07:13 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:07:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:07:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:07:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-08 10:07:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-08 10:07:13 INFO imstat:::: Values --- 2026-10-08 10:07:13 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:07:13 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:07:13 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:07:13 INFO imstat:::: -- minimum value [min]: -7.78143e-05 Jy/beam 2026-10-08 10:07:13 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:07:13 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:07:13 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:07:13 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:07:13 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:07:13 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:07:13 INFO imstat:::: Statistics --- 2026-10-08 10:07:13 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:07:13 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:07:13 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:07:13 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:07:13 INFO imstat:::: -- Median of the pixel values [median]: -1.86838e-05 Jy/beam 2026-10-08 10:07:13 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73769e-05 Jy/beam 2026-10-08 10:07:13 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-10-08 10:07:13 INFO imstat:::: -- First quartile [q1]: -3.45216e-05 Jy/beam 2026-10-08 10:07:13 INFO imstat:::: -- Third quartile [q3]: 1.1124e-06 Jy/beam 2026-10-08 10:07:13 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:07:13 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:07:13 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:07:13 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:07:13 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:07:13 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:07:13 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 2026-10-08 10:07:13 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:07:13.425093 End time: 2026-10-08 10:07:13.456222 2026-10-08 10:07:13 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:07:13 INFO imstat::::casa ########################################## 2026-10-08 10:07:13 INFO phaseshift::::casa ########################################## 2026-10-08 10:07:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:07:13 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39.968292000deg' ) 2026-10-08 10:07:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:07:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:07:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:07:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:07:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:07:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:07:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:07:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:07:14 INFO MSTransformManager::open Select data 2026-10-08 10:07:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:07:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:07:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39.968292000deg' successfully parsed 2026-10-08 10:07:19 INFO phaseshift::::casa Shift phase center 2026-10-08 10:07:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:07:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:07:13.472565 End time: 2026-10-08 10:07:20.229749 2026-10-08 10:07:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:07:20 INFO phaseshift::::casa ########################################## 2026-10-08 10:07:20 INFO tclean::::casa ########################################## 2026-10-08 10:07:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:07:20 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, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:07:20 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:07:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:07:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:07:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:07:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:07:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:07:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:07:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:07:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:07:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:07:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:07:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:07:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:07:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022369 2026-10-08 10:07:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:07:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:07:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:07:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:07:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:07:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:07:26 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:07:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:07:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:07:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:07:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:07:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:07:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:07:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:07:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:07:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:07:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:07:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:07:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:07:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:07:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:07:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:07:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:07:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:07:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:07:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:07:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:07:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:07:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:07:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:07:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:07:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:07:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:07:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:07:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:07:36 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:07:38 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:07:20.287305 End time: 2026-10-08 10:07:38.316210 2026-10-08 10:07:38 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:07:38 INFO tclean::::casa ########################################## 2026-10-08 10:07:38 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:07:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:07:38 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 10:07:38 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:07:38 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:07:38 2026****** 2026-10-08 10:07:38 INFO ImageFitter::fit+ 2026-10-08 10:07:38 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:07:38 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:07:38 INFO ImageFitter::fit+ --- region: 2026-10-08 10:07:38 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:07:38 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:07:38 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:07:38 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:07:38 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:07:38 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:07:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:07:38 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 10:07:38 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:07:38 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:07:38 INFO imstat::::casa ########################################## 2026-10-08 10:07:38 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:07:38 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 10:07:38 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:07:38 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:07:38 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:07:38 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:07:38 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:07:38 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 10:07:38 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:07:38 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:07:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:07:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:07:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:07:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:07:38 INFO imstat:::: Values --- 2026-10-08 10:07:38 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:07:38 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:07:38 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:07:38 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-10-08 10:07:38 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:07:38 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-10-08 10:07:38 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:07:38 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-10-08 10:07:38 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:07:38 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:07:38 INFO imstat:::: Statistics --- 2026-10-08 10:07:38 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:07:38 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:07:38 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:07:38 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:07:38 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-10-08 10:07:38 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-10-08 10:07:38 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-10-08 10:07:38 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-10-08 10:07:38 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-10-08 10:07:38 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:07:38 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:07:38 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:07:38 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:07:38 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:07:38 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:07:38 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 2026-10-08 10:07:38 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:07:38.383776 End time: 2026-10-08 10:07:38.409254 2026-10-08 10:07:38 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:07:38 INFO imstat::::casa ########################################## 2026-10-08 10:07:38 INFO phaseshift::::casa ########################################## 2026-10-08 10:07:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:07:38 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 0.697578292rad' ) 2026-10-08 10:07:38 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:07:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:07:38 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:07:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:07:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:07:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:07:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:07:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:07:38 INFO MSTransformManager::open Select data 2026-10-08 10:07:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:07:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:07:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 0.697578292rad' successfully parsed 2026-10-08 10:07:42 INFO phaseshift::::casa Shift phase center 2026-10-08 10:07:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:07:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:07:38.425075 End time: 2026-10-08 10:07:43.400317 2026-10-08 10:07:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:07:43 INFO phaseshift::::casa ########################################## 2026-10-08 10:07:43 INFO tclean::::casa ########################################## 2026-10-08 10:07:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:07:43 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:07:43 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:07:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:07:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:07:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:07:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:07:44 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:07:44 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:07:44 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:07:44 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:07:44 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:07:44 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:07:44 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:07:45 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:07:45 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027133 2026-10-08 10:07:45 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:07:45 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:07:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:07:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:07:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:07:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:07:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:07:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:07:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:07:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:07:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:07:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:07:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:07:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:07:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:07:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:07:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:07:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:07:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:07:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:07:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:07:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:07:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:07:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:07:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:07:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:07:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 10:07:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:07:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:07:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:07:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:07:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:07:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:07:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:07:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:07:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:08:00 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:07:43.456521 End time: 2026-10-08 10:08:00.160055 2026-10-08 10:08:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:08:00 INFO tclean::::casa ########################################## 2026-10-08 10:08:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:08:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:08:00 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) 2026-10-08 10:08:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:08:00 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:08:00 2026****** 2026-10-08 10:08:00 INFO ImageFitter::fit+ 2026-10-08 10:08:00 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:08:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:08:00 INFO ImageFitter::fit+ --- region: 2026-10-08 10:08:00 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:08:00 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:08:00 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:08:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:08:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:08:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:08:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:08:00 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) 2026-10-08 10:08:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:08:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:08:00 INFO imstat::::casa ########################################## 2026-10-08 10:08:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:08:00 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 ) 2026-10-08 10:08:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:08:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:08:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:08:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:08:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:08:00 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) 2026-10-08 10:08:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:08:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:08:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:08:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:08:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:08:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:08:00 INFO imstat:::: Values --- 2026-10-08 10:08:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:08:00 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:08:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:08:00 INFO imstat:::: -- minimum value [min]: -7.7781e-05 Jy/beam 2026-10-08 10:08:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:08:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:08:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:08:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:08:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:08:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:08:00 INFO imstat:::: Statistics --- 2026-10-08 10:08:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:08:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:08:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:08:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:08:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-10-08 10:08:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73593e-05 Jy/beam 2026-10-08 10:08:00 INFO imstat:::: -- IQR [quartile]: 3.56161e-05 Jy/beam 2026-10-08 10:08:00 INFO imstat:::: -- First quartile [q1]: -3.45125e-05 Jy/beam 2026-10-08 10:08:00 INFO imstat:::: -- Third quartile [q3]: 1.10364e-06 Jy/beam 2026-10-08 10:08:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:08:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:08:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:08:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:08:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:08:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:08:00 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 2026-10-08 10:08:00 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:08:00.235065 End time: 2026-10-08 10:08:00.261588 2026-10-08 10:08:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:08:00 INFO imstat::::casa ########################################## 2026-10-08 10:08:00 INFO phaseshift::::casa ########################################## 2026-10-08 10:08:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:08:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39d58m05.8512' ) 2026-10-08 10:08:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:08:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:08:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:08:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:08:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:08:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:08:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:08:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:08:00 INFO MSTransformManager::open Select data 2026-10-08 10:08:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:08:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:08:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39d58m05.8512' successfully parsed 2026-10-08 10:08:04 INFO phaseshift::::casa Shift phase center 2026-10-08 10:08:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:08:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:08:00.278420 End time: 2026-10-08 10:08:04.823922 2026-10-08 10:08:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:08:05 INFO phaseshift::::casa ########################################## 2026-10-08 10:08:05 INFO tclean::::casa ########################################## 2026-10-08 10:08:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:08:05 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:08:05 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:08:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:08:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:08:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:08:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:08:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:08:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:08:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:08:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:08:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:08:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:08:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:08:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:08:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026459 2026-10-08 10:08:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:08:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:08:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:08:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:08:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:08:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:08:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:08:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:08:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:08:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:08:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:08:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:08:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:08:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:08:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:08:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:08:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:08:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:08:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:08:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:08:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:08:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:08:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:08:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:08:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:08:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:08:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 10:08:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:08:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:08:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:08:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:08:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:08:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:08:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:08:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:08:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:08:19 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:08:04.877640 End time: 2026-10-08 10:08:19.403283 2026-10-08 10:08:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:08:19 INFO tclean::::casa ########################################## 2026-10-08 10:08:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:08:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:08:19 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) 2026-10-08 10:08:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:08:19 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:08:19 2026****** 2026-10-08 10:08:19 INFO ImageFitter::fit+ 2026-10-08 10:08:19 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:08:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:08:19 INFO ImageFitter::fit+ --- region: 2026-10-08 10:08:19 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:08:19 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:08:19 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:08:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:08:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:08:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:08:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:08:19 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) 2026-10-08 10:08:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:08:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:08:19 INFO imstat::::casa ########################################## 2026-10-08 10:08:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:08:19 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 ) 2026-10-08 10:08:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:08:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:08:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:08:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:08:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:08:19 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) 2026-10-08 10:08:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:08:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:08:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:08:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:08:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:08:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:08:20 INFO imstat:::: Values --- 2026-10-08 10:08:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:08:20 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:08:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:08:20 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-08 10:08:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:08:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:08:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:08:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:08:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:08:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:08:20 INFO imstat:::: Statistics --- 2026-10-08 10:08:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:08:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:08:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:08:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:08:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-08 10:08:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-08 10:08:20 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-08 10:08:20 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-08 10:08:20 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-08 10:08:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:08:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:08:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:08:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:08:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:08:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:08:20 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 2026-10-08 10:08:20 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:08:19.478925 End time: 2026-10-08 10:08:19.506239 2026-10-08 10:08:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:08:20 INFO imstat::::casa ########################################## 2026-10-08 10:08:20 INFO phaseshift::::casa ########################################## 2026-10-08 10:08:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:08:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 02:39:52.3901' ) 2026-10-08 10:08:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:08:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:08:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:08:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:08:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:08:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:08:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:08:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:08:20 INFO MSTransformManager::open Select data 2026-10-08 10:08:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:08:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-08 10:08:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 02:39:52.3901' successfully parsed 2026-10-08 10:08:23 INFO phaseshift::::casa Shift phase center 2026-10-08 10:08:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:08:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:08:19.523022 End time: 2026-10-08 10:08:23.913264 2026-10-08 10:08:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:08:24 INFO phaseshift::::casa ########################################## 2026-10-08 10:08:24 INFO tclean::::casa ########################################## 2026-10-08 10:08:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:08:24 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:08:24 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:08:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:08:24 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:08:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:08:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:08:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:08:24 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:08:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:08:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:08:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:08:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:08:24 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:08:25 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:08:25 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026299 2026-10-08 10:08:25 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:08:25 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:08:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:08:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:08:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:08:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:08:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:08:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:08:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:08:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:08:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:08:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:08:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:08:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:08:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:08:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:08:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:08:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:08:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:08:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:08:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:08:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:08:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:08:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:08:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:08:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:08:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:08:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:08:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:08:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:08:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:08:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:08:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:08:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:08:41 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:08:42 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:08:44 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:08:23.971093 End time: 2026-10-08 10:08:43.885056 2026-10-08 10:08:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:08:44 INFO tclean::::casa ########################################## 2026-10-08 10:08:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:08:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:08:44 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 10:08:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:08:44 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:08:44 2026****** 2026-10-08 10:08:44 INFO ImageFitter::fit+ 2026-10-08 10:08:44 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:08:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:08:44 INFO ImageFitter::fit+ --- region: 2026-10-08 10:08:44 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:08:44 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:08:44 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:08:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:08:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:08:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:08:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:08:44 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 10:08:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:08:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:08:44 INFO imstat::::casa ########################################## 2026-10-08 10:08:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:08:44 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 10:08:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:08:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:08:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:08:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:08:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:08:44 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-10-08 10:08:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:08:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:08:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:08:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:08:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-08 10:08:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-08 10:08:44 INFO imstat:::: Values --- 2026-10-08 10:08:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:08:44 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:08:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:08:44 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-10-08 10:08:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:08:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:08:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:08:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:08:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:08:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:08:44 INFO imstat:::: Statistics --- 2026-10-08 10:08:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:08:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:08:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:08:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:08:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-10-08 10:08:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-10-08 10:08:44 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-10-08 10:08:44 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-10-08 10:08:44 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-10-08 10:08:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:08:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:08:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:08:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:08:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:08:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:08:44 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 2026-10-08 10:08:44 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:08:43.958471 End time: 2026-10-08 10:08:43.985001 2026-10-08 10:08:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:08:44 INFO imstat::::casa ########################################## 2026-10-08 10:08:44 INFO phaseshift::::casa ########################################## 2026-10-08 10:08:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:08:44 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39.968292000deg' ) 2026-10-08 10:08:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:08:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:08:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:08:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:08:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:08:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:08:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:08:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:08:44 INFO MSTransformManager::open Select data 2026-10-08 10:08:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:08:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:08:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39.968292000deg' successfully parsed 2026-10-08 10:08:47 INFO phaseshift::::casa Shift phase center 2026-10-08 10:08:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:08:47 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:08:44.001279 End time: 2026-10-08 10:08:47.475398 2026-10-08 10:08:47 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:08:47 INFO phaseshift::::casa ########################################## 2026-10-08 10:08:48 INFO tclean::::casa ########################################## 2026-10-08 10:08:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:08:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:08:48 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:08:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:08:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:08:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:08:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:08:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:08:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:08:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:08:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:08:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:08:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:08:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:08:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:08:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.019597 2026-10-08 10:08:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:08:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:08:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:08:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:08:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:08:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:08:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:08:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:08:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:08:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:08:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:08:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:08:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:08:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:08:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:08:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:08:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:08:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:08:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:08:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:08:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:08:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:08:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:08:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:08:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:08:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:08:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 10:08:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:08:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:08:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:08:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:08:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:08:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:08:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:08:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:08:58 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:08:58 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:08:47.529569 End time: 2026-10-08 10:08:58.324995 2026-10-08 10:08:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:08:58 INFO tclean::::casa ########################################## 2026-10-08 10:08:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:08:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:08:58 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 10:08:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:08:58 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:08:58 2026****** 2026-10-08 10:08:58 INFO ImageFitter::fit+ 2026-10-08 10:08:58 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:08:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:08:58 INFO ImageFitter::fit+ --- region: 2026-10-08 10:08:58 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:08:58 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:08:58 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:08:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:08:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:08:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:08:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:08:58 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 10:08:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:08:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:08:58 INFO imstat::::casa ########################################## 2026-10-08 10:08:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:08:58 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 10:08:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:08:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:08:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:08:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:08:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:08:58 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 10:08:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:08:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:08:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:08:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:08:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:08:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:08:58 INFO imstat:::: Values --- 2026-10-08 10:08:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:08:58 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:08:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:08:58 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-10-08 10:08:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:08:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:08:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:08:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:08:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:08:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:08:58 INFO imstat:::: Statistics --- 2026-10-08 10:08:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:08:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:08:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:08:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:08:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-10-08 10:08:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-10-08 10:08:58 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-10-08 10:08:58 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-10-08 10:08:58 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-10-08 10:08:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:08:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:08:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:08:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:08:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:08:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:08:58 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 2026-10-08 10:08:58 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:08:58.393189 End time: 2026-10-08 10:08:58.434860 2026-10-08 10:08:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:08:58 INFO imstat::::casa ########################################## 2026-10-08 10:08:58 INFO phaseshift::::casa ########################################## 2026-10-08 10:08:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:08:58 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 0.697578292rad' ) 2026-10-08 10:08:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:08:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:08:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:08:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:08:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:08:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:08:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:08:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:08:58 INFO MSTransformManager::open Select data 2026-10-08 10:08:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:09:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:09:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 0.697578292rad' successfully parsed 2026-10-08 10:09:01 INFO phaseshift::::casa Shift phase center 2026-10-08 10:09:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:09:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:08:58.458185 End time: 2026-10-08 10:09:02.395761 2026-10-08 10:09:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:09:02 INFO phaseshift::::casa ########################################## 2026-10-08 10:09:02 INFO tclean::::casa ########################################## 2026-10-08 10:09:02 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:09:02 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:09:02 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:09:02 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:09:02 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:09:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:09:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:09:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:09:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:09:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:09:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:09:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:09:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:09:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:09:04 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:09:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021774 2026-10-08 10:09:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:09:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:09:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:09:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:09:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:09:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:09:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:09:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:09:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:09:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:09:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:09:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:09:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:09:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:09:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:09:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:09:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:09:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:09:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:09:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:09:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:09:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:09:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:09:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:09:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:09:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:09:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:09:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:09:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:09:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:09:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:09:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:09:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:09:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:09:15 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:09:15 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:09:16 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:09:02.446385 End time: 2026-10-08 10:09:16.295099 2026-10-08 10:09:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:09:16 INFO tclean::::casa ########################################## 2026-10-08 10:09:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:09:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:09:16 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) 2026-10-08 10:09:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:09:16 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:09:16 2026****** 2026-10-08 10:09:16 INFO ImageFitter::fit+ 2026-10-08 10:09:16 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:09:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:09:16 INFO ImageFitter::fit+ --- region: 2026-10-08 10:09:16 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:09:16 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:09:16 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:09:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:09:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:09:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:09:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:09:16 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 10:09:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:09:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:09:16 INFO imstat::::casa ########################################## 2026-10-08 10:09:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:09:16 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 ) 2026-10-08 10:09:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:09:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:09:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:09:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:09:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:09:16 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) 2026-10-08 10:09:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:09:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:09:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:09:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:09:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:09:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:09:16 INFO imstat:::: Values --- 2026-10-08 10:09:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:09:16 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:09:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:09:16 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-10-08 10:09:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:09:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:09:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:09:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:09:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:09:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:09:16 INFO imstat:::: Statistics --- 2026-10-08 10:09:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:09:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:09:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:09:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:09:16 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-10-08 10:09:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-10-08 10:09:16 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-10-08 10:09:16 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-10-08 10:09:16 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-10-08 10:09:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:09:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:09:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:09:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:09:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:09:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:09:16 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 2026-10-08 10:09:16 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:09:16.378684 End time: 2026-10-08 10:09:16.421771 2026-10-08 10:09:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:09:16 INFO imstat::::casa ########################################## 2026-10-08 10:09:16 INFO phaseshift::::casa ########################################## 2026-10-08 10:09:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:09:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39d58m05.8512' ) 2026-10-08 10:09:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:09:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:09:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:09:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:09:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:09:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:09:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:09:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:09:16 INFO MSTransformManager::open Select data 2026-10-08 10:09:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:09:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:09:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39d58m05.8512' successfully parsed 2026-10-08 10:09:21 INFO phaseshift::::casa Shift phase center 2026-10-08 10:09:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:09:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:09:16.438238 End time: 2026-10-08 10:09:22.070557 2026-10-08 10:09:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:09:22 INFO phaseshift::::casa ########################################## 2026-10-08 10:09:22 INFO tclean::::casa ########################################## 2026-10-08 10:09:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:09:22 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:09:22 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:09:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:09:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:09:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:09:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:09:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:09:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:09:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:09:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:09:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:09:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:09:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:09:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:09:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028451 2026-10-08 10:09:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:09:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:09:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:09:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:09:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:09:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:09:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:09:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:09:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:09:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:09:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:09:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:09:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:09:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:09:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:09:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:09:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:09:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:09:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:09:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:09:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:09:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:09:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:09:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:09:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:09:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:09:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 10:09:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:09:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:09:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:09:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:09:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:09:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:09:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:09:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:09:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:09:35 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:09:22.127522 End time: 2026-10-08 10:09:35.265812 2026-10-08 10:09:35 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:09:35 INFO tclean::::casa ########################################## 2026-10-08 10:09:35 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:09:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:09:35 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 10:09:35 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:09:35 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:09:35 2026****** 2026-10-08 10:09:35 INFO ImageFitter::fit+ 2026-10-08 10:09:35 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:09:35 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:09:35 INFO ImageFitter::fit+ --- region: 2026-10-08 10:09:35 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:09:35 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:09:35 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:09:35 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:09:35 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:09:35 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:09:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:09:35 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 10:09:35 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:09:35 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:09:35 INFO imstat::::casa ########################################## 2026-10-08 10:09:35 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:09:35 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 10:09:35 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:09:35 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:09:35 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:09:35 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:09:35 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:09:35 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-10-08 10:09:35 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:09:35 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:09:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:09:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:09:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:09:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:09:35 INFO imstat:::: Values --- 2026-10-08 10:09:35 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:09:35 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:09:35 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:09:35 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-10-08 10:09:35 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:09:35 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:09:35 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:09:35 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:09:35 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:09:35 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:09:35 INFO imstat:::: Statistics --- 2026-10-08 10:09:35 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:09:35 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:09:35 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:09:35 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:09:35 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-10-08 10:09:35 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-10-08 10:09:35 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-10-08 10:09:35 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-10-08 10:09:35 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-10-08 10:09:35 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:09:35 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:09:35 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:09:35 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:09:35 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:09:35 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:09:35 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 2026-10-08 10:09:35 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:09:35.355717 End time: 2026-10-08 10:09:35.395890 2026-10-08 10:09:35 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:09:35 INFO imstat::::casa ########################################## 2026-10-08 10:09:35 INFO phaseshift::::casa ########################################## 2026-10-08 10:09:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:09:35 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 02:39:52.3901' ) 2026-10-08 10:09:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:09:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:09:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:09:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:09:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:09:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:09:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:09:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:09:35 INFO MSTransformManager::open Select data 2026-10-08 10:09:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:09:40 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-10-08 10:09:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 02:39:52.3901' successfully parsed 2026-10-08 10:09:40 INFO phaseshift::::casa Shift phase center 2026-10-08 10:09:41 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:09:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:09:35.413001 End time: 2026-10-08 10:09:40.859527 2026-10-08 10:09:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:09:41 INFO phaseshift::::casa ########################################## 2026-10-08 10:09:41 INFO tclean::::casa ########################################## 2026-10-08 10:09:41 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:09:41 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:09:41 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:09:41 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:09:41 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:09:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:09:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:09:41 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:09:41 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:09:41 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:09:41 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:09:41 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:09:41 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:09:41 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:09:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:09:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027772 2026-10-08 10:09:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:09:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:09:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:09:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:09:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:09:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:09:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:09:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:09:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:09:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:09:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:09:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:09:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:09:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:09:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:09:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:09:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:09:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:09:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:09:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:09:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:09:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:09:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:09:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:09:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:09:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:09:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-10-08 10:09:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:09:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:09:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:09:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:09:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:09:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:09:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:09:52 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:09:53 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:09:54 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:09:40.915636 End time: 2026-10-08 10:09:54.418370 2026-10-08 10:09:54 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:09:54 INFO tclean::::casa ########################################## 2026-10-08 10:09:54 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:09:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:09:54 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-10-08 10:09:54 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:09:54 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:09:54 2026****** 2026-10-08 10:09:54 INFO ImageFitter::fit+ 2026-10-08 10:09:54 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:09:54 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:09:54 INFO ImageFitter::fit+ --- region: 2026-10-08 10:09:54 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:09:54 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:09:54 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:09:54 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:09:54 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:09:54 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:09:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:09:54 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-10-08 10:09:54 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116885 Jy 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126501 Jy 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:09:54 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:09:54 INFO imstat::::casa ########################################## 2026-10-08 10:09:54 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:09:54 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-10-08 10:09:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:09:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:09:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:09:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:09:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:09:55 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) 2026-10-08 10:09:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:09:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:09:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:09:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:09:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-10-08 10:09:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-10-08 10:09:55 INFO imstat:::: Values --- 2026-10-08 10:09:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:09:55 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:09:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:09:55 INFO imstat:::: -- minimum value [min]: -7.78268e-05 Jy/beam 2026-10-08 10:09:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:09:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:09:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:09:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:09:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:09:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:09:55 INFO imstat:::: Statistics --- 2026-10-08 10:09:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:09:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:09:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:09:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:09:55 INFO imstat:::: -- Median of the pixel values [median]: -1.8675e-05 Jy/beam 2026-10-08 10:09:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73782e-05 Jy/beam 2026-10-08 10:09:55 INFO imstat:::: -- IQR [quartile]: 3.56598e-05 Jy/beam 2026-10-08 10:09:55 INFO imstat:::: -- First quartile [q1]: -3.45364e-05 Jy/beam 2026-10-08 10:09:55 INFO imstat:::: -- Third quartile [q3]: 1.12335e-06 Jy/beam 2026-10-08 10:09:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:09:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:09:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:09:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:09:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:09:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:09:55 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 2026-10-08 10:09:55 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:09:54.491798 End time: 2026-10-08 10:09:54.518231 2026-10-08 10:09:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:09:55 INFO imstat::::casa ########################################## 2026-10-08 10:09:55 INFO phaseshift::::casa ########################################## 2026-10-08 10:09:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:09:55 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 5.201492224rad 39.968292000deg' ) 2026-10-08 10:09:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:09:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:09:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:09:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:09:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:09:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:09:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:09:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:09:55 INFO MSTransformManager::open Select data 2026-10-08 10:09:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:09:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:09:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39.968292000deg' successfully parsed 2026-10-08 10:09:56 INFO phaseshift::::casa Shift phase center 2026-10-08 10:09:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:09:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:09:54.534918 End time: 2026-10-08 10:09:56.990421 2026-10-08 10:09:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:09:57 INFO phaseshift::::casa ########################################## 2026-10-08 10:09:57 INFO tclean::::casa ########################################## 2026-10-08 10:09:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:09:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:09:57 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:09:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:09:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:09:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:09:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:09:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:09:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:09:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:09:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:09:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:09:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:09:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:09:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:09:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017323 2026-10-08 10:09:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:09:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:09:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:09:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:10:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:10:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:10:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:10:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:10:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:10:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:10:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:10:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:10:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:10:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:10:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:10:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:10:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:10:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:10:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:10:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:10:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:10:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:10:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:10:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:10:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:10:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:10:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 10:10:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:10:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:10:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:10:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:10:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:10:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:10:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:10:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:10:07 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:10:08 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:09:57.046030 End time: 2026-10-08 10:10:08.239850 2026-10-08 10:10:08 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:10:08 INFO tclean::::casa ########################################## 2026-10-08 10:10:08 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:10:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:10:08 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) 2026-10-08 10:10:08 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:10:08 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:10:08 2026****** 2026-10-08 10:10:08 INFO ImageFitter::fit+ 2026-10-08 10:10:08 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:10:08 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:10:08 INFO ImageFitter::fit+ --- region: 2026-10-08 10:10:08 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:10:08 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:10:08 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:10:08 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:10:08 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:10:08 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:10:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:10:08 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) 2026-10-08 10:10:08 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:10:08 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:10:08 INFO imstat::::casa ########################################## 2026-10-08 10:10:08 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:10:08 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 ) 2026-10-08 10:10:08 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:10:08 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:10:08 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:10:08 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:10:08 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:10:08 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) 2026-10-08 10:10:08 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:10:08 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:10:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:10:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:10:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:10:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:10:08 INFO imstat:::: Values --- 2026-10-08 10:10:08 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:10:08 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:10:08 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:10:08 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-10-08 10:10:08 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:10:08 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:10:08 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:10:08 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:10:08 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:10:08 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:10:08 INFO imstat:::: Statistics --- 2026-10-08 10:10:08 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:10:08 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:10:08 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:10:08 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:10:08 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-10-08 10:10:08 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-10-08 10:10:08 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-10-08 10:10:08 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-10-08 10:10:08 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-10-08 10:10:08 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:10:08 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:10:08 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:10:08 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:10:08 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:10:08 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:10:08 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 2026-10-08 10:10:08 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:10:08.318058 End time: 2026-10-08 10:10:08.346164 2026-10-08 10:10:08 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:10:08 INFO imstat::::casa ########################################## 2026-10-08 10:10:08 INFO phaseshift::::casa ########################################## 2026-10-08 10:10:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-10-08 10:10:08 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 0.697578292rad' ) 2026-10-08 10:10:08 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-10-08 10:10:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-10-08 10:10:08 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-10-08 10:10:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-10-08 10:10:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-10-08 10:10:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-10-08 10:10:08 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-10-08 10:10:08 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-10-08 10:10:08 INFO MSTransformManager::open Select data 2026-10-08 10:10:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-10-08 10:10:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-10-08 10:10:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 0.697578292rad' successfully parsed 2026-10-08 10:10:13 INFO phaseshift::::casa Shift phase center 2026-10-08 10:10:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-10-08 10:10:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-10-08 10:10:08.362721 End time: 2026-10-08 10:10:13.901140 2026-10-08 10:10:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-10-08 10:10:14 INFO phaseshift::::casa ########################################## 2026-10-08 10:10:14 INFO tclean::::casa ########################################## 2026-10-08 10:10:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-10-08 10:10:14 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-10-08 10:10:14 INFO tclean::::casa Verifying Input Parameters 2026-10-08 10:10:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-10-08 10:10:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-10-08 10:10:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:10:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-10-08 10:10:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-10-08 10:10:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-10-08 10:10:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-10-08 10:10:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.00412 GB. Available mem.: 48.03 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-10-08 10:10:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-10-08 10:10:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-10-08 10:10:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-10-08 10:10:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-10-08 10:10:17 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028458 2026-10-08 10:10:17 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:10:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-10-08 10:10:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-10-08 10:10:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-10-08 10:10:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-10-08 10:10:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-10-08 10:10:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-10-08 10:10:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:10:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-10-08 10:10:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-10-08 10:10:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-10-08 10:10:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-10-08 10:10:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-10-08 10:10:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:10:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-10-08 10:10:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-10-08 10:10:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-10-08 10:10:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-10-08 10:10:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-10-08 10:10:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:10:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-10-08 10:10:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-10-08 10:10:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-10-08 10:10:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-10-08 10:10:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-10-08 10:10:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-10-08 10:10:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-10-08 10:10:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-10-08 10:10:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-10-08 10:10:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-10-08 10:10:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-10-08 10:10:23 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-10-08 10:10:23 INFO tclean::::casa getSummary call: fullsummary=False 2026-10-08 10:10:23 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-10-08 10:10:24 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-10-08 10:10:24 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.sumwt', 'im_post_phaseshift.image', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.pb', 'im_post_phaseshift.mask'] 2026-10-08 10:10:26 INFO tclean::::casa Task tclean complete. Start time: 2026-10-08 10:10:13.958293 End time: 2026-10-08 10:10:26.469900 2026-10-08 10:10:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-10-08 10:10:26 INFO tclean::::casa ########################################## 2026-10-08 10:10:26 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-10-08 10:10:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:10:26 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) 2026-10-08 10:10:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-10-08 10:10:27 INFO ImageFitter::fit ****** Fit performed at Thu Oct 8 10:10:27 2026****** 2026-10-08 10:10:27 INFO ImageFitter::fit+ 2026-10-08 10:10:27 INFO ImageFitter::fit+ Input parameters --- 2026-10-08 10:10:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-10-08 10:10:27 INFO ImageFitter::fit+ --- region: 2026-10-08 10:10:27 INFO ImageFitter::fit+ --- channel: 0 2026-10-08 10:10:27 INFO ImageFitter::fit+ --- stokes: I 2026-10-08 10:10:27 INFO ImageFitter::fit+ --- mask: 2026-10-08 10:10:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-10-08 10:10:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-10-08 10:10:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-10-08 10:10:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:10:27 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) 2026-10-08 10:10:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ Position --- 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-10-08 10:10:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-10-08 10:10:27 INFO imstat::::casa ########################################## 2026-10-08 10:10:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-10-08 10:10:27 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 ) 2026-10-08 10:10:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-10-08 10:10:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-10-08 10:10:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-10-08 10:10:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-10-08 10:10:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-10-08 10:10:27 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) 2026-10-08 10:10:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-10-08 10:10:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-10-08 10:10:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-10-08 10:10:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-10-08 10:10:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-10-08 10:10:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-10-08 10:10:27 INFO imstat:::: Values --- 2026-10-08 10:10:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-10-08 10:10:27 INFO imstat:::: -- number of points [npts]: 65536 2026-10-08 10:10:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-10-08 10:10:27 INFO imstat:::: -- minimum value [min]: -7.77956e-05 Jy/beam 2026-10-08 10:10:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-10-08 10:10:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-10-08 10:10:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-10-08 10:10:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-10-08 10:10:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-10-08 10:10:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-10-08 10:10:27 INFO imstat:::: Statistics --- 2026-10-08 10:10:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-10-08 10:10:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-10-08 10:10:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-10-08 10:10:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-10-08 10:10:27 INFO imstat:::: -- Median of the pixel values [median]: -1.86648e-05 Jy/beam 2026-10-08 10:10:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73536e-05 Jy/beam 2026-10-08 10:10:27 INFO imstat:::: -- IQR [quartile]: 3.5639e-05 Jy/beam 2026-10-08 10:10:27 INFO imstat:::: -- First quartile [q1]: -3.45152e-05 Jy/beam 2026-10-08 10:10:27 INFO imstat:::: -- Third quartile [q3]: 1.12373e-06 Jy/beam 2026-10-08 10:10:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-10-08 10:10:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-10-08 10:10:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-10-08 10:10:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-10-08 10:10:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-10-08 10:10:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-10-08 10:10:27 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 2026-10-08 10:10:27 INFO imstat::::casa Task imstat complete. Start time: 2026-10-08 10:10:26.547569 End time: 2026-10-08 10:10:26.574203 2026-10-08 10:10:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-10-08 10:10:27 INFO imstat::::casa ########################################## . ---------------------------------------------------------------------- Ran 27 tests in 1847.880s OK Generating XML reports...